117813718 has 32 divisors (see below), whose sum is σ = 209952000. Its totient is φ = 48978720.

The previous prime is 117813713. The next prime is 117813719. The reversal of 117813718 is 817318711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117813713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7263 + ... + 16981.

It is an arithmetic number, because the mean of its divisors is an integer number (6561000).

Almost surely, 2^117813718 is an apocalyptic number.

117813718 is a deficient number, since it is larger than the sum of its proper divisors (92138282).

117813718 is a wasteful number, since it uses less digits than its factorization.

117813718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9780.

The product of its digits is 9408, while the sum is 37.

The square root of 117813718 is about 10854.2027804901. The cubic root of 117813718 is about 490.2285730764.

The spelling of 117813718 in words is "one hundred seventeen million, eight hundred thirteen thousand, seven hundred eighteen".