Hecho general: 83896 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 83896 is a boring number.
Trivia: 83896 is an unremarkable number.
Fecha histórica: September 12th is the day in 1966 that Gemini 11, the penultimate mission of NASA's Gemini program, and the current human altitude record holder (except for the Apollo lunar missions).