117972393 has 32 divisors (see below), whose sum is σ = 198899712. Its totient is φ = 60412800.

The previous prime is 117972373. The next prime is 117972403. The reversal of 117972393 is 393279711.

It is not a de Polignac number, because 117972393 - 2⁸ = 117972137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117972373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12805 + ... + 19997.

It is an arithmetic number, because the mean of its divisors is an integer number (6215616).

Almost surely, 2^117972393 is an apocalyptic number.

It is an amenable number.

117972393 is a deficient number, since it is larger than the sum of its proper divisors (80927319).

117972393 is a wasteful number, since it uses less digits than its factorization.

117972393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285.

The product of its digits is 71442, while the sum is 42.

The square root of 117972393 is about 10861.5097016943. The cubic root of 117972393 is about 490.4485591253.

The spelling of 117972393 in words is "one hundred seventeen million, nine hundred seventy-two thousand, three hundred ninety-three".