117517398 has 32 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 37727040.

The previous prime is 117517391. The next prime is 117517417. The reversal of 117517398 is 893715711.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117517391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16411 + ... + 22457.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^117517398 is an apocalyptic number.

117517398 is an abundant number, since it is smaller than the sum of its proper divisors (126337962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117517398 is a wasteful number, since it uses less digits than its factorization.

117517398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172.

The product of its digits is 52920, while the sum is 42.

The square root of 117517398 is about 10840.5441745329. The cubic root of 117517398 is about 489.8172274046.

The spelling of 117517398 in words is "one hundred seventeen million, five hundred seventeen thousand, three hundred ninety-eight".