117917288 has 16 divisors (see below), whose sum is σ = 222255360. Its totient is φ = 58649200.

The previous prime is 117917279. The next prime is 117917299. The reversal of 117917288 is 882719711.

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, 37058 + ... + 40113.

It is an arithmetic number, because the mean of its divisors is an integer number (13890960).

Almost surely, 2^117917288 is an apocalyptic number.

It is an amenable number.

117917288 is a deficient number, since it is larger than the sum of its proper divisors (104338072).

117917288 is a wasteful number, since it uses less digits than its factorization.

117917288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77368 (or 77364 counting only the distinct ones).

The product of its digits is 56448, while the sum is 44.

The square root of 117917288 is about 10858.9726954257. The cubic root of 117917288 is about 490.3721842599.

The spelling of 117917288 in words is "one hundred seventeen million, nine hundred seventeen thousand, two hundred eighty-eight".