Fatto generale: 17903 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 17903 is an unremarkable number.
Trivia: 17903 is a boring number.
Data storica: January 5th is the day in 1911 that Kappa Alpha Psi, the world's second oldest and largest black fraternity, is founded at Indiana University.