Fatto matematico: 4624 is 4^{4} + 4^{6} + 4^{2} + 4^{4}.
Trivia: 4624 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: August 28th is the day in 1991 that Collapse of the Soviet Union – Mikhail Gorbachev resigns as General Secretary of the Soviet Communist Party.