117986688 has 192 divisors, whose sum is σ = 365021280. Its totient is φ = 36495360.

The previous prime is 117986663. The next prime is 117986699. The reversal of 117986688 is 886689711.

It is a tau number, because it is divible by the number of its divisors (192).

Its product of digits (1161216) is a multiple of the sum of its prime divisors (162).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1616220 + ... + 1616292.

Almost surely, 2^117986688 is an apocalyptic number.

117986688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117986688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182510640).

117986688 is an abundant number, since it is smaller than the sum of its proper divisors (247034592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117986688 is a wasteful number, since it uses less digits than its factorization.

117986688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 162 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 117986688 is about 10862.1677394524. The cubic root of 117986688 is about 490.4683679377.

The spelling of 117986688 in words is "one hundred seventeen million, nine hundred eighty-six thousand, six hundred eighty-eight".