117651996 has 72 divisors (see below), whose sum is σ = 370790784. Its totient is φ = 30558240.

The previous prime is 117651977. The next prime is 117652021. The reversal of 117651996 is 699156711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18450 + ... + 23993.

It is an arithmetic number, because the mean of its divisors is an integer number (5149872).

Almost surely, 2^117651996 is an apocalyptic number.

It is an amenable number.

117651996 is an abundant number, since it is smaller than the sum of its proper divisors (253138788).

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

117651996 is a wasteful number, since it uses less digits than its factorization.

117651996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42471 (or 42466 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 117651996 is about 10846.7504811349. The cubic root of 117651996 is about 490.0041593427.

The spelling of 117651996 in words is "one hundred seventeen million, six hundred fifty-one thousand, nine hundred ninety-six".