117198888 has 32 divisors (see below), whose sum is σ = 295241760. Its totient is φ = 38767040.

The previous prime is 117198883. The next prime is 117198899. The reversal of 117198888 is 888891711.

It is a self number, because there is not a number n which added to its sum of digits gives 117198888.

It is not an unprimeable number, because it can be changed into a prime (117198883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15495 + ... + 21782.

It is an arithmetic number, because the mean of its divisors is an integer number (9226305).

Almost surely, 2^117198888 is an apocalyptic number.

It is an amenable number.

117198888 is an abundant number, since it is smaller than the sum of its proper divisors (178042872).

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

117198888 is a wasteful number, since it uses less digits than its factorization.

117198888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37417 (or 37413 counting only the distinct ones).

The product of its digits is 258048, while the sum is 51.

The square root of 117198888 is about 10825.8435237168. The cubic root of 117198888 is about 489.3743061927.

The spelling of 117198888 in words is "one hundred seventeen million, one hundred ninety-eight thousand, eight hundred eighty-eight".