117997872 has 40 divisors (see below), whose sum is σ = 305248320. Its totient is φ = 39278400.

The previous prime is 117997849. The next prime is 117997883. The reversal of 117997872 is 278799711.

It is a happy number.

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, 49279 + ... + 51617.

It is an arithmetic number, because the mean of its divisors is an integer number (7631208).

Almost surely, 2^117997872 is an apocalyptic number.

117997872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117997872 is an abundant number, since it is smaller than the sum of its proper divisors (187250448).

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

117997872 is a wasteful number, since it uses less digits than its factorization.

117997872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3395 counting only the distinct ones).

The product of its digits is 444528, while the sum is 51.

The square root of 117997872 is about 10862.6825416193. The cubic root of 117997872 is about 490.4838646716.

The spelling of 117997872 in words is "one hundred seventeen million, nine hundred ninety-seven thousand, eight hundred seventy-two".