76865975 has 12 divisors (see below), whose sum is σ = 95580936. Its totient is φ = 61320480.

The previous prime is 76865941. The next prime is 76866017. The reversal of 76865975 is 57956867.

76865975 = 255² + 256² + ... + 627².

It is a happy number.

It is not a de Polignac number, because 76865975 - 2²² = 72671671 is a prime.

It is a super-2 number, since 2×76865975² = 11816756225401250, which contains 22 as substring.

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, 5204 + ... + 13446.

It is an arithmetic number, because the mean of its divisors is an integer number (7965078).

Almost surely, 2^76865975 is an apocalyptic number.

76865975 is a deficient number, since it is larger than the sum of its proper divisors (18714961).

76865975 is a wasteful number, since it uses less digits than its factorization.

76865975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626 (or 8621 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 76865975 is about 8767.3242782505. The cubic root of 76865975 is about 425.1851096748.

The spelling of 76865975 in words is "seventy-six million, eight hundred sixty-five thousand, nine hundred seventy-five".