78257204 has 24 divisors (see below), whose sum is σ = 138969600. Its totient is φ = 38556000.

The previous prime is 78257197. The next prime is 78257213. The reversal of 78257204 is 40275287.

It is a super-2 number, since 2×78257204² = 12248379955795232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103829 + ... + 104579.

It is an arithmetic number, because the mean of its divisors is an integer number (5790400).

Almost surely, 2^78257204 is an apocalyptic number.

It is an amenable number.

78257204 is a deficient number, since it is larger than the sum of its proper divisors (60712396).

78257204 is a wasteful number, since it uses less digits than its factorization.

78257204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 78257204 is about 8846.3101912605. The cubic root of 78257204 is about 427.7349874829.

The spelling of 78257204 in words is "seventy-eight million, two hundred fifty-seven thousand, two hundred four".