It is difficult to estimate the exact number of hafiz (those who have memorized the Quran) in the world, as there is no centralized organization or authority to keep track of this information. However, it is safe to say that there are millions of hafiz around the world, as memorizing the Quran is a common goal and accomplishment among Muslims of all ages and backgrounds. It is a revered and respected achievement in Islamic culture, and many individuals dedicate years of their lives to memorizing the Quran.