117218689 has 12 divisors (see below), whose sum is σ = 142310464. Its totient is φ = 94561344.

The previous prime is 117218671. The next prime is 117218749. The reversal of 117218689 is 986812711.

It is a happy number.

It is not a de Polignac number, because 117218689 - 2¹¹ = 117216641 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117213689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26949 + ... + 30994.

Almost surely, 2^117218689 is an apocalyptic number.

It is an amenable number.

117218689 is a deficient number, since it is larger than the sum of its proper divisors (25091775).

117218689 is an equidigital number, since it uses as much as digits as its factorization.

117218689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57984 (or 57967 counting only the distinct ones).

The product of its digits is 48384, while the sum is 43.

The square root of 117218689 is about 10826.7580096721. The cubic root of 117218689 is about 489.4018649154.

The spelling of 117218689 in words is "one hundred seventeen million, two hundred eighteen thousand, six hundred eighty-nine".