A functional element for pressing into a workpiece, in particular into a sheet metal part, said functional element comprising a functional section; and a fastening section having an abutment surface for introducing a press-in force into the functional element; a workpiece contact surface which is disposed opposite the abutment surface, which can be brought into contact with the workpiece, and which is in particular of a flange-like design; and a sealing region for receiving displaced material of the workpiece, said sealing region being disposed between the workpiece contact surface and the functional section in an axial direction and/or a radial direction of the functional element and forming a contact surface for the displaced material to seal a connection between the functional element and the workpiece, wherein the contact surface has a first part surface, which extends obliquely to the axial direction of the functional element and which converges viewed in a press-in direction of the functional element, and a second part surface which adjoins the first part surface, which extends obliquely to the axial direction of the functional element, and which diverges viewed in the press-in direction of the functional element, and wherein the fastening section has a projection which bounds the sealing region in the axial direction and which has a first flank facing the sealing region and a second flank which is remote from the sealing region and which extends obliquely and inclined to different degrees or to the same degree with respect to the axial direction, characterized in that the first part surface and the second part surface are conical, in that the first part surface is connected to the second part surface by a rounded transition region, and in that the first flank and the second flank are connected to one another by a connection section in which the projection has a constant diameter. a functional section; and a fastening section having an abutment surface for introducing a press-in force into the functional element; a workpiece contact surface which is disposed opposite the abutment surface, which can be brought into contact with the workpiece, and which is in particular of a flange-like design; and a sealing region for receiving displaced material of the workpiece, said sealing region being disposed between the workpiece contact surface and the functional section in an axial direction and/or a radial direction of the functional element and forming a contact surface for the displaced material to seal a connection between the functional element and the workpiece, wherein the contact surface has a first part surface, which extends obliquely to the axial direction of the functional element and which converges viewed in a press-in direction of the functional element, and a second part surface which adjoins the first part surface, which extends obliquely to the axial direction of the functional element, and which diverges viewed in the press-in direction of the functional element, and wherein the fastening section has a projection which bounds the sealing region in the axial direction and which has a first flank facing the sealing region and a second flank which is remote from the sealing region and which extends obliquely and inclined to different degrees or to the same degree with respect to the axial direction, characterized in that the first part surface and the second part surface are conical, in that the first part surface is connected to the second part surface by a rounded transition region, and in that the first flank and the second flank are connected to one another by a connection section in which the projection has a constant diameter. an abutment surface for introducing a press-in force into the functional element; a workpiece contact surface which is disposed opposite the abutment surface, which can be brought into contact with the workpiece, and which is in particular of a flange-like design; and a sealing region for receiving displaced material of the workpiece, said sealing region being disposed between the workpiece contact surface and the functional section in an axial direction and/or a radial direction of the functional element and forming a contact surface for the displaced material to seal a connection between the functional element and the workpiece, wherein the contact surface has a first part surface, which extends obliquely to the axial direction of the functional element and which converges viewed in a press-in direction of the functional element, and a second part surface which adjoins the first part surface, which extends obliquely to the axial direction of the functional element, and which diverges viewed in the press-in direction of the functional element, and wherein the fastening section has a projection which bounds the sealing region in the axial direction and which has a first flank facing the sealing region and a second flank which is remote from the sealing region and which extends obliquely and inclined to different degrees or to the same degree with respect to the axial direction, characterized in that the first part surface and the second part surface are conical, in that the first part surface is connected to the second part surface by a rounded transition region, and in that the first flank and the second flank are connected to one another by a connection section in which the projection has a constant diameter.