A propeller fan, comprising: a rotary shaft portion configured to rotate around an axial center (RC); and a plurality of blades disposed around an outer circumferential portion of the rotary shaft portion , each of the plurality of blades having at least one recessed portion that opens at a trailing edge of the blade , and the at least one recessed portion having a first side that is close to an inner circumference of the blade , the first side stretching from the trailing edge toward a leading edge of the blade and bent toward an outer circumference of the blade , in each of the plurality of blades , a projecting portion being formed in a portion of the trailing edge that is closer to the inner circumference than is the at least one recessed portion , the projecting portion projecting downstream, wherein a line connecting one side end (13A-1) of the projecting portion that is close to the outer circumferential end of the blade and an other side end (13A-2) of the projecting portion that is close to an inner circumferential end of the blade along an outer circumference of the projecting portion forms a fourth side (13A-3), wherein a straight line connecting the one side end (13A-1) of the projecting portion and the other side (13A-2) end of the projecting portion forms a first virtual line , wherein a line perpendicularly extending to the fourth side (13A-3) from a midpoint of the first virtual line forms a second virtual line , and wherein a maximum projection point of the projecting portion is located closer to the inner circumference than is an intersection of the fourth side (13A-3) and the second virtual line . a rotary shaft portion configured to rotate around an axial center (RC); and a plurality of blades disposed around an outer circumferential portion of the rotary shaft portion , each of the plurality of blades having at least one recessed portion that opens at a trailing edge of the blade , and the at least one recessed portion having a first side that is close to an inner circumference of the blade , the first side stretching from the trailing edge toward a leading edge of the blade and bent toward an outer circumference of the blade , in each of the plurality of blades , a projecting portion being formed in a portion of the trailing edge that is closer to the inner circumference than is the at least one recessed portion , the projecting portion projecting downstream, wherein a line connecting one side end (13A-1) of the projecting portion that is close to the outer circumferential end of the blade and an other side end (13A-2) of the projecting portion that is close to an inner circumferential end of the blade along an outer circumference of the projecting portion forms a fourth side (13A-3), wherein a straight line connecting the one side end (13A-1) of the projecting portion and the other side (13A-2) end of the projecting portion forms a first virtual line , wherein a line perpendicularly extending to the fourth side (13A-3) from a midpoint of the first virtual line forms a second virtual line , and wherein a maximum projection point of the projecting portion is located closer to the inner circumference than is an intersection of the fourth side (13A-3) and the second virtual line . <EOS>