Fatto generale: 84439 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 84439 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 84439 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 9th is the day in 1957 that a magnitude 8.3 earthquake in the Andreanof Islands, Alaska triggers a Pacific-wide tsunami causing extensive damage to Hawaii and Oahu.