76985764 has 6 divisors (see below), whose sum is σ = 134725094. Its totient is φ = 38492880.

The previous prime is 76985759. The next prime is 76985773. The reversal of 76985764 is 46758967.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 22963264 = 7350^2 + 4792^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9623217 + ... + 9623224.

Almost surely, 2^76985764 is an apocalyptic number.

It is an amenable number.

76985764 is a deficient number, since it is larger than the sum of its proper divisors (57739330).

76985764 is a wasteful number, since it uses less digits than its factorization.

76985764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19246445 (or 19246443 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The square root of 76985764 is about 8774.1531785124. The cubic root of 76985764 is about 425.4058664922.

The spelling of 76985764 in words is "seventy-six million, nine hundred eighty-five thousand, seven hundred sixty-four".