77613996 has 24 divisors (see below), whose sum is σ = 182052864. Its totient is φ = 25735120.

The previous prime is 77613989. The next prime is 77613997. The reversal of 77613996 is 69931677.

It is not an unprimeable number, because it can be changed into a prime (77613997) 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, 14640 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (7585536).

Almost surely, 2^77613996 is an apocalyptic number.

It is an amenable number.

77613996 is an abundant number, since it is smaller than the sum of its proper divisors (104438868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77613996 is a wasteful number, since it uses less digits than its factorization.

77613996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34061 (or 34059 counting only the distinct ones).

The product of its digits is 428652, while the sum is 48.

The square root of 77613996 is about 8809.8805894291. The cubic root of 77613996 is about 426.5598889158.

The spelling of 77613996 in words is "seventy-seven million, six hundred thirteen thousand, nine hundred ninety-six".