117999685 has 12 divisors (see below), whose sum is σ = 143165988. Its totient is φ = 93359616.

The previous prime is 117999653. The next prime is 117999743. The reversal of 117999685 is 586999711.

It can be written as a sum of positive squares in 6 ways, for example, as 16641 + 117983044 = 129^2 + 10862^2 .

It is not a de Polignac number, because 117999685 - 2⁵ = 117999653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257977 + ... + 258433.

It is an arithmetic number, because the mean of its divisors is an integer number (11930499).

Almost surely, 2^117999685 is an apocalyptic number.

It is an amenable number.

117999685 is a deficient number, since it is larger than the sum of its proper divisors (25166303).

117999685 is an frugal number, since it uses more digits than its factorization.

117999685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 575 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 55.

The square root of 117999685 is about 10862.7659921403. The cubic root of 117999685 is about 490.4863767019.

The spelling of 117999685 in words is "one hundred seventeen million, nine hundred ninety-nine thousand, six hundred eighty-five".