77164012 has 12 divisors (see below), whose sum is σ = 139693680. Its totient is φ = 37251536.

The previous prime is 77163913. The next prime is 77164019. The reversal of 77164012 is 21046177.

It is a super-2 number, since 2×77164012² = 11908569495872288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77164019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332488 + ... + 332719.

It is an arithmetic number, because the mean of its divisors is an integer number (11641140).

Almost surely, 2^77164012 is an apocalyptic number.

It is an amenable number.

77164012 is a deficient number, since it is larger than the sum of its proper divisors (62529668).

77164012 is a wasteful number, since it uses less digits than its factorization.

77164012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665240 (or 665238 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 77164012 is about 8784.3048672049. The cubic root of 77164012 is about 425.7339327642.

The spelling of 77164012 in words is "seventy-seven million, one hundred sixty-four thousand, twelve".