76972964 has 6 divisors (see below), whose sum is σ = 134702694. Its totient is φ = 38486480.

The previous prime is 76972963. The next prime is 76972979. The reversal of 76972964 is 46927967.

It can be written as a sum of positive squares in only one way, i.e., 76702564 + 270400 = 8758^2 + 520^2 .

It is not an unprimeable number, because it can be changed into a prime (76972963) 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 as a sum of consecutive naturals, namely, 9621617 + ... + 9621624.

It is an arithmetic number, because the mean of its divisors is an integer number (22450449).

Almost surely, 2^76972964 is an apocalyptic number.

It is an amenable number.

76972964 is a deficient number, since it is larger than the sum of its proper divisors (57729730).

76972964 is a wasteful number, since it uses less digits than its factorization.

76972964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19243245 (or 19243243 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 50.

The square root of 76972964 is about 8773.4237330702. The cubic root of 76972964 is about 425.3822885533.

The spelling of 76972964 in words is "seventy-six million, nine hundred seventy-two thousand, nine hundred sixty-four".