117885920 has 24 divisors (see below), whose sum is σ = 278505864. Its totient is φ = 47154304.

The previous prime is 117885893. The next prime is 117885923. The reversal of 117885920 is 29588711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117885923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368234 + ... + 368553.

It is an arithmetic number, because the mean of its divisors is an integer number (11604411).

Almost surely, 2^117885920 is an apocalyptic number.

117885920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117885920 is an abundant number, since it is smaller than the sum of its proper divisors (160619944).

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

117885920 is an equidigital number, since it uses as much as digits as its factorization.

117885920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736802 (or 736794 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 117885920 is about 10857.5282638361. The cubic root of 117885920 is about 490.3286979623.

The spelling of 117885920 in words is "one hundred seventeen million, eight hundred eighty-five thousand, nine hundred twenty".