117991339 has 8 divisors (see below), whose sum is σ = 125029008. Its totient is φ = 110964480.

The previous prime is 117991333. The next prime is 117991369. The reversal of 117991339 is 933199711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117991339 - 2¹³ = 117983147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117991295 and 117991304.

It is not an unprimeable number, because it can be changed into a prime (117991333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34599 + ... + 37855.

It is an arithmetic number, because the mean of its divisors is an integer number (15628626).

Almost surely, 2^117991339 is an apocalyptic number.

117991339 is a deficient number, since it is larger than the sum of its proper divisors (7037669).

117991339 is a wasteful number, since it uses less digits than its factorization.

117991339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405.

The product of its digits is 45927, while the sum is 43.

The square root of 117991339 is about 10862.3818290465. The cubic root of 117991339 is about 490.4748125585.

The spelling of 117991339 in words is "one hundred seventeen million, nine hundred ninety-one thousand, three hundred thirty-nine".