77806604 has 24 divisors (see below), whose sum is σ = 138969600. Its totient is φ = 38106000.

The previous prime is 77806601. The next prime is 77806627. The reversal of 77806604 is 40660877.

It is not an unprimeable number, because it can be changed into a prime (77806601) 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, 103229 + ... + 103979.

It is an arithmetic number, because the mean of its divisors is an integer number (5790400).

Almost surely, 2^77806604 is an apocalyptic number.

It is an amenable number.

77806604 is a deficient number, since it is larger than the sum of its proper divisors (61162996).

77806604 is a wasteful number, since it uses less digits than its factorization.

77806604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 77806604 is about 8820.8051786671. The cubic root of 77806604 is about 426.9124498055.

The spelling of 77806604 in words is "seventy-seven million, eight hundred six thousand, six hundred four".