78784056 has 64 divisors (see below), whose sum is σ = 235687200. Its totient is φ = 24240384.

The previous prime is 78784033. The next prime is 78784061. The reversal of 78784056 is 65048787.

It is a super-2 number, since 2×78784056² = 12413854959622272, 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 15 ways as a sum of consecutive naturals, for example, 11221 + ... + 16836.

Almost surely, 2^78784056 is an apocalyptic number.

It is an amenable number.

78784056 is an abundant number, since it is smaller than the sum of its proper divisors (156903144).

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

78784056 is a wasteful number, since it uses less digits than its factorization.

78784056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28085 (or 28075 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 78784056 is about 8876.0383054604. The cubic root of 78784056 is about 428.6927233820.

The spelling of 78784056 in words is "seventy-eight million, seven hundred eighty-four thousand, fifty-six".