Fatto generale: 6436 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6436 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 6436 is a boring number.
Data storica: August 14th is the day in 1816 that the United Kingdom formally annexed the Tristan da Cunha archipelago, ruling them from the Cape Colony in South Africa.