77890504 has 16 divisors (see below), whose sum is σ = 147161520. Its totient is φ = 38647440.

The previous prime is 77890499. The next prime is 77890511. The reversal of 77890504 is 40509877.

It is a super-2 number, since 2×77890504² = 12133861226748032, which contains 22 as substring.

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, 36114 + ... + 38209.

It is an arithmetic number, because the mean of its divisors is an integer number (9197595).

Almost surely, 2^77890504 is an apocalyptic number.

It is an amenable number.

77890504 is a deficient number, since it is larger than the sum of its proper divisors (69271016).

77890504 is a wasteful number, since it uses less digits than its factorization.

77890504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74460 (or 74456 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 77890504 is about 8825.5596989653. The cubic root of 77890504 is about 427.0658433311.

The spelling of 77890504 in words is "seventy-seven million, eight hundred ninety thousand, five hundred four".