117317993 has 8 divisors (see below), whose sum is σ = 126462336. Its totient is φ = 108190800.

The previous prime is 117317983. The next prime is 117318011. The reversal of 117317993 is 399713711.

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

It is a cyclic number.

It is not a de Polignac number, because 117317993 - 2⁶ = 117317929 is a prime.

It is a super-2 number, since 2×117317993² = 27527022963096098, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117317993.

It is not an unprimeable number, because it can be changed into a prime (117317983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12338 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (15807792).

Almost surely, 2^117317993 is an apocalyptic number.

117317993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

117317993 is a deficient number, since it is larger than the sum of its proper divisors (9144343).

117317993 is a wasteful number, since it uses less digits than its factorization.

117317993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575.

The product of its digits is 35721, while the sum is 41.

The square root of 117317993 is about 10831.3430838470. The cubic root of 117317993 is about 489.5400278815.

The spelling of 117317993 in words is "one hundred seventeen million, three hundred seventeen thousand, nine hundred ninety-three".