84079984 has 40 divisors (see below), whose sum is σ = 168972320. Its totient is φ = 40497408.

The previous prime is 84079981. The next prime is 84079993. The reversal of 84079984 is 48997048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84079981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63877 + ... + 65179.

It is an arithmetic number, because the mean of its divisors is an integer number (4224308).

Almost surely, 2^84079984 is an apocalyptic number.

It is an amenable number.

84079984 is an abundant number, since it is smaller than the sum of its proper divisors (84892336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84079984 is a wasteful number, since it uses less digits than its factorization.

84079984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 84079984 is about 9169.5138366219. The cubic root of 84079984 is about 438.0908744397.

The spelling of 84079984 in words is "eighty-four million, seventy-nine thousand, nine hundred eighty-four".