78604 has 12 divisors (see below), whose sum is σ = 141064. Its totient is φ = 38304.

The previous prime is 78593. The next prime is 78607. The reversal of 78604 is 40687.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (78607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57 + ... + 400.

2⁷⁸⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

78604 is a deficient number, since it is larger than the sum of its proper divisors (62460).

78604 is a wasteful number, since it uses less digits than its factorization.

78604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 78604 is about 280.3640490505. The cubic root of 78604 is about 42.8365890860.

The spelling of 78604 in words is "seventy-eight thousand, six hundred four".