117698931 has 18 divisors (see below), whose sum is σ = 197766972. Its totient is φ = 67256280.

The previous prime is 117698921. The next prime is 117698941. The reversal of 117698931 is 139896711.

It is an interprime number because it is at equal distance from previous prime (117698921) and next prime (117698941).

It is not a de Polignac number, because 117698931 - 2⁵ = 117698899 is a prime.

It is a super-2 number, since 2×117698931² = 27706076717085522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117698921) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 133005 + ... + 133886.

It is an arithmetic number, because the mean of its divisors is an integer number (10987054).

Almost surely, 2^117698931 is an apocalyptic number.

117698931 is a deficient number, since it is larger than the sum of its proper divisors (80068041).

117698931 is a wasteful number, since it uses less digits than its factorization.

117698931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266911 (or 266901 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 117698931 is about 10848.9138165993. The cubic root of 117698931 is about 490.0693099236.

The spelling of 117698931 in words is "one hundred seventeen million, six hundred ninety-eight thousand, nine hundred thirty-one".