84431968 has 24 divisors (see below), whose sum is σ = 169365168. Its totient is φ = 41418624.

The previous prime is 84431959. The next prime is 84431981. The reversal of 84431968 is 86913448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23196 + ... + 26587.

It is an arithmetic number, because the mean of its divisors is an integer number (7056882).

Almost surely, 2^84431968 is an apocalyptic number.

It is an amenable number.

84431968 is an abundant number, since it is smaller than the sum of its proper divisors (84933200).

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

84431968 is a wasteful number, since it uses less digits than its factorization.

84431968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49846 (or 49838 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 84431968 is about 9188.6869573405. The cubic root of 84431968 is about 438.7013498977.

The spelling of 84431968 in words is "eighty-four million, four hundred thirty-one thousand, nine hundred sixty-eight".