117091858 has 8 divisors (see below), whose sum is σ = 189148428. Its totient is φ = 54042384.

The previous prime is 117091853. The next prime is 117091913. The reversal of 117091858 is 858190711.

It can be written as a sum of positive squares in 2 ways, for example, as 114554209 + 2537649 = 10703^2 + 1593^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 117091858.

It is not an unprimeable number, because it can be changed into a prime (117091853) 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, 2251741 + ... + 2251792.

Almost surely, 2^117091858 is an apocalyptic number.

117091858 is a deficient number, since it is larger than the sum of its proper divisors (72056570).

117091858 is a wasteful number, since it uses less digits than its factorization.

117091858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503548.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 117091858 is about 10820.8991308486. The cubic root of 117091858 is about 489.2252897491.

The spelling of 117091858 in words is "one hundred seventeen million, ninety-one thousand, eight hundred fifty-eight".