79653864 has 16 divisors (see below), whose sum is σ = 199134720. Its totient is φ = 26551280.

The previous prime is 79653863. The next prime is 79653869. The reversal of 79653864 is 46835697.

It is not an unprimeable number, because it can be changed into a prime (79653863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1659432 + ... + 1659479.

It is an arithmetic number, because the mean of its divisors is an integer number (12445920).

Almost surely, 2^79653864 is an apocalyptic number.

It is an amenable number.

79653864 is an abundant number, since it is smaller than the sum of its proper divisors (119480856).

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

79653864 is a wasteful number, since it uses less digits than its factorization.

79653864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318920 (or 3318916 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 79653864 is about 8924.9013439925. The cubic root of 79653864 is about 430.2646000801.

The spelling of 79653864 in words is "seventy-nine million, six hundred fifty-three thousand, eight hundred sixty-four".