78920304 has 20 divisors (see below), whose sum is σ = 203877576. Its totient is φ = 26306752.

The previous prime is 78920299. The next prime is 78920323. The reversal of 78920304 is 40302987.

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, 822039 + ... + 822134.

Almost surely, 2^78920304 is an apocalyptic number.

It is an amenable number.

78920304 is an abundant number, since it is smaller than the sum of its proper divisors (124957272).

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

78920304 is a wasteful number, since it uses less digits than its factorization.

78920304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644184 (or 1644178 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 78920304 is about 8883.7100357902. The cubic root of 78920304 is about 428.9397060465.

The spelling of 78920304 in words is "seventy-eight million, nine hundred twenty thousand, three hundred four".