76997905 has 16 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 58250368.

The previous prime is 76997897. The next prime is 76997911. The reversal of 76997905 is 50979967.

It is a cyclic number.

It is not a de Polignac number, because 76997905 - 2³ = 76997897 is a prime.

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, 6474 + ... + 13996.

It is an arithmetic number, because the mean of its divisors is an integer number (6094440).

Almost surely, 2^76997905 is an apocalyptic number.

It is an amenable number.

76997905 is a deficient number, since it is larger than the sum of its proper divisors (20513135).

76997905 is a wasteful number, since it uses less digits than its factorization.

76997905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 76997905 is about 8774.8450128763. The cubic root of 76997905 is about 425.4282281206.

The spelling of 76997905 in words is "seventy-six million, nine hundred ninety-seven thousand, nine hundred five".