Hecho general: 83490 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 83490 is a boring number.
Trivia: 83490 is a boring number.
Fecha histórica: August 2nd is the day in 1869 that Japan's samurai, farmer, artisan, merchant class system (Shinōkōshō) is abolished as part of the Meiji Restoration reforms.