117690912 has 72 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 38979456.

The previous prime is 117690907. The next prime is 117690913. The reversal of 117690912 is 219096711.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (117690913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46873 + ... + 49319.

It is an arithmetic number, because the mean of its divisors is an integer number (4678128).

Almost surely, 2^117690912 is an apocalyptic number.

117690912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117690912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168412608).

117690912 is an abundant number, since it is smaller than the sum of its proper divisors (219134304).

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

117690912 is a wasteful number, since it uses less digits than its factorization.

117690912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 117690912 is about 10848.5442341357. The cubic root of 117690912 is about 490.0581799583.

The spelling of 117690912 in words is "one hundred seventeen million, six hundred ninety thousand, nine hundred twelve".