117689 has 8 divisors (see below), whose sum is σ = 138432. Its totient is φ = 98640.

The previous prime is 117679. The next prime is 117701. The reversal of 117689 is 986711.

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 117689 - 2⁴ = 117673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117619) 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 7 ways as a sum of consecutive naturals, for example, 269 + ... + 554.

It is an arithmetic number, because the mean of its divisors is an integer number (17304).

2¹¹⁷⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

117689 is a deficient number, since it is larger than the sum of its proper divisors (20743).

117689 is a wasteful number, since it uses less digits than its factorization.

117689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 3024, while the sum is 32.

The square root of 117689 is about 343.0583040826. The cubic root of 117689 is about 49.0055526125.

The spelling of 117689 in words is "one hundred seventeen thousand, six hundred eighty-nine".