117832839 has 4 divisors (see below), whose sum is σ = 157110456. Its totient is φ = 78555224.

The previous prime is 117832823. The next prime is 117832861. The reversal of 117832839 is 938238711.

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

It is a cyclic number.

It is not a de Polignac number, because 117832839 - 2⁴ = 117832823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117832839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117832879) 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, 19638804 + ... + 19638809.

It is an arithmetic number, because the mean of its divisors is an integer number (39277614).

Almost surely, 2^117832839 is an apocalyptic number.

117832839 is a deficient number, since it is larger than the sum of its proper divisors (39277617).

117832839 is an equidigital number, since it uses as much as digits as its factorization.

117832839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39277616.

The product of its digits is 72576, while the sum is 42.

The square root of 117832839 is about 10855.0835556434. The cubic root of 117832839 is about 490.2550927767.

The spelling of 117832839 in words is "one hundred seventeen million, eight hundred thirty-two thousand, eight hundred thirty-nine".