117790668 has 36 divisors (see below), whose sum is σ = 302800680. Its totient is φ = 38597376.

The previous prime is 117790661. The next prime is 117790679. The reversal of 117790668 is 866097711.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (117790661) 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, 25605 + ... + 29852.

It is an arithmetic number, because the mean of its divisors is an integer number (8411130).

Almost surely, 2^117790668 is an apocalyptic number.

117790668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

117790668 is an abundant number, since it is smaller than the sum of its proper divisors (185010012).

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

117790668 is a wasteful number, since it uses less digits than its factorization.

117790668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55526 (or 55521 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 117790668 is about 10853.1409278605. The cubic root of 117790668 is about 490.1966002700.

The spelling of 117790668 in words is "one hundred seventeen million, seven hundred ninety thousand, six hundred sixty-eight".