77950825 has 24 divisors (see below), whose sum is σ = 102250400. Its totient is φ = 58786560.

The previous prime is 77950819. The next prime is 77950867. The reversal of 77950825 is 52805977.

It is not a de Polignac number, because 77950825 - 2⁵ = 77950793 is a prime.

It is a super-2 number, since 2×77950825² = 12152662236361250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179809 + ... + 180241.

Almost surely, 2^77950825 is an apocalyptic number.

It is an amenable number.

77950825 is a deficient number, since it is larger than the sum of its proper divisors (24299575).

77950825 is a wasteful number, since it uses less digits than its factorization.

77950825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 77950825 is about 8828.9764412416. The cubic root of 77950825 is about 427.1760595543.

The spelling of 77950825 in words is "seventy-seven million, nine hundred fifty thousand, eight hundred twenty-five".