79664454 has 24 divisors (see below), whose sum is σ = 181691640. Its totient is φ = 25157088.

The previous prime is 79664449. The next prime is 79664461. The reversal of 79664454 is 45446697.

It is a super-2 number, since 2×79664454² = 12692850462236232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116127 + ... + 116810.

It is an arithmetic number, because the mean of its divisors is an integer number (7570485).

Almost surely, 2^79664454 is an apocalyptic number.

79664454 is an abundant number, since it is smaller than the sum of its proper divisors (102027186).

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

79664454 is a wasteful number, since it uses less digits than its factorization.

79664454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232964 (or 232961 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 79664454 is about 8925.4946081436. The cubic root of 79664454 is about 430.2836671618.

The spelling of 79664454 in words is "seventy-nine million, six hundred sixty-four thousand, four hundred fifty-four".