117939992 has 32 divisors (see below), whose sum is σ = 233310000. Its totient is φ = 55738368.

The previous prime is 117939977. The next prime is 117940003. The reversal of 117939992 is 299939711.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 117939992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116384 + ... + 117392.

Almost surely, 2^117939992 is an apocalyptic number.

It is an amenable number.

117939992 is a deficient number, since it is larger than the sum of its proper divisors (115370008).

117939992 is a wasteful number, since it uses less digits than its factorization.

117939992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1799 counting only the distinct ones).

The product of its digits is 275562, while the sum is 50.

The square root of 117939992 is about 10860.0180478671. The cubic root of 117939992 is about 490.4036546117.

The spelling of 117939992 in words is "one hundred seventeen million, nine hundred thirty-nine thousand, nine hundred ninety-two".