77932964 has 24 divisors (see below), whose sum is σ = 147932568. Its totient is φ = 35778560.

The previous prime is 77932963. The next prime is 77932973. The reversal of 77932964 is 46923977.

It can be written as a sum of positive squares in 4 ways, for example, as 25080064 + 52852900 = 5008^2 + 7270^2 .

It is not an unprimeable number, because it can be changed into a prime (77932961) 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 7 ways as a sum of consecutive naturals, for example, 11189 + ... + 16764.

It is an arithmetic number, because the mean of its divisors is an integer number (6163857).

Almost surely, 2^77932964 is an apocalyptic number.

It is an amenable number.

77932964 is a deficient number, since it is larger than the sum of its proper divisors (69999604).

77932964 is a wasteful number, since it uses less digits than its factorization.

77932964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28015 (or 28013 counting only the distinct ones).

The product of its digits is 571536, while the sum is 47.

The square root of 77932964 is about 8827.9648843887. The cubic root of 77932964 is about 427.1434305457.

The spelling of 77932964 in words is "seventy-seven million, nine hundred thirty-two thousand, nine hundred sixty-four".