Hecho general: 827 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 827 is the number of asymmetric trees with 11 vertices.
Trivia: 827 is an uninteresting number.
Fecha histórica: April 6th is the day in 1994 that the Rwandan Genocide begins when the aircraft carrying Rwandan president Juvénal Habyarimana and Burundian president Cyprien Ntaryamira is shot down.