77910692 has 12 divisors (see below), whose sum is σ = 136456320. Its totient is φ = 38923176.

The previous prime is 77910671. The next prime is 77910709. The reversal of 77910692 is 29601977.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2108 + ... + 12659.

It is an arithmetic number, because the mean of its divisors is an integer number (11371360).

Almost surely, 2^77910692 is an apocalyptic number.

It is an amenable number.

77910692 is a deficient number, since it is larger than the sum of its proper divisors (58545628).

77910692 is a wasteful number, since it uses less digits than its factorization.

77910692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16090 (or 16088 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 77910692 is about 8826.7033483629. The cubic root of 77910692 is about 427.1027364055.

The spelling of 77910692 in words is "seventy-seven million, nine hundred ten thousand, six hundred ninety-two".