84 (eighty-four) is a positive integer following 83 and preceding 85. Its ordinal form is written "eighty-fourth" or 84th.

Properties Edit

84 is an even composite number.

84 is the 7th tetrahedral number.

In chess Edit

It is also the number of possible king moves in 4×4 minichess.

In googology Edit

In Greek-based number-naming systems, 84 is associated with prefix "tetraoctaconta-", and with prefix "quattuoroctoginti-" in Latin