Fatto generale: 9383 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9383 is the index of a Fibonacci number whose first 9 digits are the digits 1-9 rearranged.
Trivia: 9383 is an unremarkable number.
Data storica: September 8th is the day in 1831 that William IV and Adelaide of Saxe-Meiningen are crowned King and Queen of the United Kingdom of Great Britain and Ireland.