117869688 has 128 divisors (see below), whose sum is σ = 350208000. Its totient is φ = 36650880.

The previous prime is 117869681. The next prime is 117869737. The reversal of 117869688 is 886968711.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1161216) is a multiple of the sum of its prime divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117869681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193881 + ... + 194487.

It is an arithmetic number, because the mean of its divisors is an integer number (2736000).

Almost surely, 2^117869688 is an apocalyptic number.

117869688 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 117869688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175104000).

117869688 is an abundant number, since it is smaller than the sum of its proper divisors (232338312).

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

117869688 is a wasteful number, since it uses less digits than its factorization.

117869688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 672 counting only the distinct ones).

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

The square root of 117869688 is about 10856.7807383220. The cubic root of 117869688 is about 490.3061920776.

It can be divided in two parts, 11 and 7869688, that multiplied together give a palindrome (86566568).

The spelling of 117869688 in words is "one hundred seventeen million, eight hundred sixty-nine thousand, six hundred eighty-eight".