Hecho matemático: 19986 is an unremarkable number.
Trivia: 19986 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: September 19th is the day in 1989 that a terrorist bomb explodes UTA Flight 772 in mid-air above the Tùnùrù Desert, Niger, killing 171.