77856932 has 12 divisors (see below), whose sum is σ = 142173696. Its totient is φ = 37235880.

The previous prime is 77856929. The next prime is 77856941. The reversal of 77856932 is 23965877.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423044 + ... + 423227.

It is an arithmetic number, because the mean of its divisors is an integer number (11847808).

Almost surely, 2^77856932 is an apocalyptic number.

It is an amenable number.

77856932 is a deficient number, since it is larger than the sum of its proper divisors (64316764).

77856932 is a wasteful number, since it uses less digits than its factorization.

77856932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846298 (or 846296 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 77856932 is about 8823.6575182857. The cubic root of 77856932 is about 427.0044772075.

The spelling of 77856932 in words is "seventy-seven million, eight hundred fifty-six thousand, nine hundred thirty-two".