117890179 has 24 divisors (see below), whose sum is σ = 136515456. Its totient is φ = 101587200.

The previous prime is 117890173. The next prime is 117890183. The reversal of 117890179 is 971098711.

117890179 = 126² + 127² + ... + 708².

It is not a de Polignac number, because 117890179 - 2²³ = 109501571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117890173) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 198507 + ... + 199099.

It is an arithmetic number, because the mean of its divisors is an integer number (5688144).

Almost surely, 2^117890179 is an apocalyptic number.

117890179 is a deficient number, since it is larger than the sum of its proper divisors (18625277).

117890179 is a wasteful number, since it uses less digits than its factorization.

117890179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 117890179 is about 10857.7243932603. The cubic root of 117890179 is about 490.3346027805.

The spelling of 117890179 in words is "one hundred seventeen million, eight hundred ninety thousand, one hundred seventy-nine".