117933979 has 4 divisors (see below), whose sum is σ = 119932920. Its totient is φ = 115935040.

The previous prime is 117933943. The next prime is 117933983. The reversal of 117933979 is 979339711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117933979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117936979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999382 + ... + 999499.

It is an arithmetic number, because the mean of its divisors is an integer number (29983230).

Almost surely, 2^117933979 is an apocalyptic number.

117933979 is a deficient number, since it is larger than the sum of its proper divisors (1998941).

117933979 is an equidigital number, since it uses as much as digits as its factorization.

117933979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998940.

The product of its digits is 321489, while the sum is 49.

The square root of 117933979 is about 10859.7412031779. The cubic root of 117933979 is about 490.3953202962.

The spelling of 117933979 in words is "one hundred seventeen million, nine hundred thirty-three thousand, nine hundred seventy-nine".