Fatto generale: 23879 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 23879 is an uninteresting number.
Trivia: 23879 is a boring number.
Data storica: May 17th is the day in 1902 that Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.