117979288 has 16 divisors (see below), whose sum is σ = 252812880. Its totient is φ = 50562528.

The previous prime is 117979261. The next prime is 117979297. The reversal of 117979288 is 882979711.

It is a super-2 number, since 2×117979288² = 27838224793973888, 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 3 ways as a sum of consecutive naturals, for example, 1053331 + ... + 1053442.

It is an arithmetic number, because the mean of its divisors is an integer number (15800805).

Almost surely, 2^117979288 is an apocalyptic number.

It is an amenable number.

117979288 is an abundant number, since it is smaller than the sum of its proper divisors (134833592).

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

117979288 is a wasteful number, since it uses less digits than its factorization.

117979288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106786 (or 2106782 counting only the distinct ones).

The product of its digits is 508032, while the sum is 52.

The square root of 117979288 is about 10861.8271022881. The cubic root of 117979288 is about 490.4581138379.

The spelling of 117979288 in words is "one hundred seventeen million, nine hundred seventy-nine thousand, two hundred eighty-eight".