Fatto generale: 57789 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 57789 is a boring number.
Trivia: 57789 is an uninteresting number.
Data storica: March 21st is the day in 1935 that Shah Reza Pahlavi formally asks the international community to call Persia by its native name, Iran, which means 'Land of the Aryans.