76864655 has 16 divisors (see below), whose sum is σ = 108816384. Its totient is φ = 51006240.

The previous prime is 76864621. The next prime is 76864661. The reversal of 76864655 is 55646867.

It is not a de Polignac number, because 76864655 - 2⁸ = 76864399 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 34337 + ... + 36506.

It is an arithmetic number, because the mean of its divisors is an integer number (6801024).

Almost surely, 2^76864655 is an apocalyptic number.

76864655 is a deficient number, since it is larger than the sum of its proper divisors (31951729).

76864655 is a wasteful number, since it uses less digits than its factorization.

76864655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70886.

The product of its digits is 1209600, while the sum is 47.

The square root of 76864655 is about 8767.2489984031. The cubic root of 76864655 is about 425.1826757953.

The spelling of 76864655 in words is "seventy-six million, eight hundred sixty-four thousand, six hundred fifty-five".