76664997 has 12 divisors (see below), whose sum is σ = 112141120. Its totient is φ = 50462568.

The previous prime is 76664993. The next prime is 76665011. The reversal of 76664997 is 79946667.

It is not a de Polignac number, because 76664997 - 2² = 76664993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76664993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53203 + ... + 54624.

Almost surely, 2^76664997 is an apocalyptic number.

It is an amenable number.

76664997 is a deficient number, since it is larger than the sum of its proper divisors (35476123).

76664997 is a wasteful number, since it uses less digits than its factorization.

76664997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107912 (or 107909 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 76664997 is about 8755.8550125045. The cubic root of 76664997 is about 424.8142154531.

The spelling of 76664997 in words is "seventy-six million, six hundred sixty-four thousand, nine hundred ninety-seven".