117912864 has 48 divisors (see below), whose sum is σ = 310087008. Its totient is φ = 39232512.

The previous prime is 117912859. The next prime is 117912877. The reversal of 117912864 is 468219711.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 90264 + ... + 91560.

It is an arithmetic number, because the mean of its divisors is an integer number (6460146).

Almost surely, 2^117912864 is an apocalyptic number.

It is an amenable number.

117912864 is an abundant number, since it is smaller than the sum of its proper divisors (192174144).

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

117912864 is a wasteful number, since it uses less digits than its factorization.

With its successor (117912865) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (2257).

117912864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2249 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 117912864 is about 10858.7689910045. The cubic root of 117912864 is about 490.3660516175.

The spelling of 117912864 in words is "one hundred seventeen million, nine hundred twelve thousand, eight hundred sixty-four".