117838864 has 40 divisors (see below), whose sum is σ = 268232832. Its totient is φ = 49441920.

The previous prime is 117838859. The next prime is 117838873. The reversal of 117838864 is 468838711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23464 + ... + 28039.

Almost surely, 2^117838864 is an apocalyptic number.

It is an amenable number.

117838864 is an abundant number, since it is smaller than the sum of its proper divisors (150393968).

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

117838864 is a wasteful number, since it uses less digits than its factorization.

117838864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51535 (or 51529 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 117838864 is about 10855.3610718391. The cubic root of 117838864 is about 490.2634485023.

The spelling of 117838864 in words is "one hundred seventeen million, eight hundred thirty-eight thousand, eight hundred sixty-four".