76774636 has 12 divisors (see below), whose sum is σ = 134453200. Its totient is φ = 38359440.

The previous prime is 76774613. The next prime is 76774637. The reversal of 76774636 is 63647767.

It is a happy number.

76774636 is a nontrivial binomial coefficient, being equal to C(12392, 2).

It is not an unprimeable number, because it can be changed into a prime (76774637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 12391.

Almost surely, 2^76774636 is an apocalyptic number.

76774636 is the 12391-st triangular number and also the 6196-th hexagonal number.

76774636 is the 4131-st centered nonagonal number.

It is an amenable number.

76774636 is a deficient number, since it is larger than the sum of its proper divisors (57678564).

76774636 is a wasteful number, since it uses less digits than its factorization.

76774636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13944 (or 13942 counting only the distinct ones).

The product of its digits is 889056, while the sum is 46.

The square root of 76774636 is about 8762.1136719401. The cubic root of 76774636 is about 425.0166286458.

The spelling of 76774636 in words is "seventy-six million, seven hundred seventy-four thousand, six hundred thirty-six".