General fact: 5784 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 5784 is a boring number.
Trivia: 5784 is an unremarkable number.
Historical date: November 1st is the day in 1901 that Sigma Phi Epsilon, the largest national male collegiate fraternity is established at Richmond College, in Richmond, VA.