Hecho matemático: 83989 is an uninteresting number.
Trivia: 83989 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: December 14th is the day in 1918 that Friedrich Karl von Hessen, a German prince elected by the Parliament of Finland to become King Väinö I, renounces the Finnish throne.