117839318 has 4 divisors (see below), whose sum is σ = 176758980. Its totient is φ = 58919658.

The previous prime is 117839303. The next prime is 117839321. The reversal of 117839318 is 813938711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 813938711 = 157 ⋅5184323.

It is a super-2 number, since 2×117839318² = 27772209733410248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29459828 + ... + 29459831.

It is an arithmetic number, because the mean of its divisors is an integer number (44189745).

Almost surely, 2^117839318 is an apocalyptic number.

117839318 is a deficient number, since it is larger than the sum of its proper divisors (58919662).

117839318 is an equidigital number, since it uses as much as digits as its factorization.

117839318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58919661.

The product of its digits is 36288, while the sum is 41.

The square root of 117839318 is about 10855.3819831455. The cubic root of 117839318 is about 490.2640781172.

The spelling of 117839318 in words is "one hundred seventeen million, eight hundred thirty-nine thousand, three hundred eighteen".