76664605 has 16 divisors (see below), whose sum is σ = 93519360. Its totient is φ = 60326208.

The previous prime is 76664597. The next prime is 76664633. The reversal of 76664605 is 50646667.

It is a cyclic number.

It is not a de Polignac number, because 76664605 - 2³ = 76664597 is a prime.

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, 88404 + ... + 89266.

It is an arithmetic number, because the mean of its divisors is an integer number (5844960).

Almost surely, 2^76664605 is an apocalyptic number.

It is an amenable number.

76664605 is a deficient number, since it is larger than the sum of its proper divisors (16854755).

76664605 is a wasteful number, since it uses less digits than its factorization.

76664605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 76664605 is about 8755.8326274547. The cubic root of 76664605 is about 424.8134914049.

The spelling of 76664605 in words is "seventy-six million, six hundred sixty-four thousand, six hundred five".