Hecho general: 63880 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 63880 is a boring number.
Trivia: 63880 is a boring number.
Fecha histórica: November 23rd is the day in 1976 that Apneist Jacques Mayol is the first man to reach a depth of 100 m undersea without breathing equipment.