76821925 has 12 divisors (see below), whose sum is σ = 95418496. Its totient is φ = 61354800.

The previous prime is 76821911. The next prime is 76821989. The reversal of 76821925 is 52912867.

It is not a de Polignac number, because 76821925 - 2⁵ = 76821893 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15052 + ... + 19498.

Almost surely, 2^76821925 is an apocalyptic number.

It is an amenable number.

76821925 is a deficient number, since it is larger than the sum of its proper divisors (18596571).

76821925 is a wasteful number, since it uses less digits than its factorization.

76821925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148 (or 5143 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 76821925 is about 8764.8117492619. The cubic root of 76821925 is about 425.1038731112.

The spelling of 76821925 in words is "seventy-six million, eight hundred twenty-one thousand, nine hundred twenty-five".