General fact: 9377 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 9377 is a value of n for which n, 2n, 3n, and 4n all use the same number of digits in Roman numerals.
Trivia: 9377 is a boring number.
Historical date: September 2nd is the day in 1898 that Battle of Omdurman – British and Egyptian troops defeat Sudanese tribesmen and establish British dominance in Sudan.