117685597 has 4 divisors (see below), whose sum is σ = 117718336. Its totient is φ = 117652860.

The previous prime is 117685591. The next prime is 117685627. The reversal of 117685597 is 795586711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 795586711 = 131 ⋅6073181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117685597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117685597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117685591) 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, 10203 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (29429584).

Almost surely, 2^117685597 is an apocalyptic number.

It is an amenable number.

117685597 is a deficient number, since it is larger than the sum of its proper divisors (32739).

117685597 is an equidigital number, since it uses as much as digits as its factorization.

117685597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32738.

The product of its digits is 529200, while the sum is 49.

The square root of 117685597 is about 10848.2992676272. The cubic root of 117685597 is about 490.0508027293.

The spelling of 117685597 in words is "one hundred seventeen million, six hundred eighty-five thousand, five hundred ninety-seven".