78572324 has 12 divisors (see below), whose sum is σ = 143480064. Its totient is φ = 37578024.

The previous prime is 78572311. The next prime is 78572369. The reversal of 78572324 is 42327587.

It is a super-2 number, since 2×78572324² = 12347220197521952, which contains 22 as substring.

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, 426932 + ... + 427115.

It is an arithmetic number, because the mean of its divisors is an integer number (11956672).

Almost surely, 2^78572324 is an apocalyptic number.

It is an amenable number.

78572324 is a deficient number, since it is larger than the sum of its proper divisors (64907740).

78572324 is a wasteful number, since it uses less digits than its factorization.

78572324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854074 (or 854072 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 78572324 is about 8864.1031131187. The cubic root of 78572324 is about 428.3083418762.

The spelling of 78572324 in words is "seventy-eight million, five hundred seventy-two thousand, three hundred twenty-four".