78574372 has 6 divisors (see below), whose sum is σ = 137505158. Its totient is φ = 39287184.

The previous prime is 78574303. The next prime is 78574381. The reversal of 78574372 is 27347587.

It can be written as a sum of positive squares in only one way, i.e., 55591936 + 22982436 = 7456^2 + 4794^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9821793 + ... + 9821800.

Almost surely, 2^78574372 is an apocalyptic number.

It is an amenable number.

78574372 is a deficient number, since it is larger than the sum of its proper divisors (58930786).

78574372 is a wasteful number, since it uses less digits than its factorization.

78574372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19643597 (or 19643595 counting only the distinct ones).

The product of its digits is 329280, while the sum is 43.

The square root of 78574372 is about 8864.2186344878. The cubic root of 78574372 is about 428.3120631520.

It can be divided in two parts, 785 and 74372, that added together give a palindrome (75157).

The spelling of 78574372 in words is "seventy-eight million, five hundred seventy-four thousand, three hundred seventy-two".