117990864 has 40 divisors (see below), whose sum is σ = 338678720. Its totient is φ = 39330144.

The previous prime is 117990857. The next prime is 117990877. The reversal of 117990864 is 468099711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136132 + ... + 136995.

It is an arithmetic number, because the mean of its divisors is an integer number (8466968).

Almost surely, 2^117990864 is an apocalyptic number.

It is an amenable number.

117990864 is an abundant number, since it is smaller than the sum of its proper divisors (220687856).

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

117990864 is a wasteful number, since it uses less digits than its factorization.

117990864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273144 (or 273132 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 117990864 is about 10862.3599645749. The cubic root of 117990864 is about 490.4741543864.

The spelling of 117990864 in words is "one hundred seventeen million, nine hundred ninety thousand, eight hundred sixty-four".