117885888 has 112 divisors (see below), whose sum is σ = 367040160. Its totient is φ = 36974592.

The previous prime is 117885883. The next prime is 117885893. The reversal of 117885888 is 888588711.

It is an interprime number because it is at equal distance from previous prime (117885883) and next prime (117885893).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117885881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27370 + ... + 31382.

Almost surely, 2^117885888 is an apocalyptic number.

117885888 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 117885888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183520080).

117885888 is an abundant number, since it is smaller than the sum of its proper divisors (249154272).

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

117885888 is a wasteful number, since it uses less digits than its factorization.

117885888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 4035 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 54.

The square root of 117885888 is about 10857.5267902041. The cubic root of 117885888 is about 490.3286535959.

It can be divided in two parts, 11 and 7885888, that multiplied together give a palindrome (86744768).

The spelling of 117885888 in words is "one hundred seventeen million, eight hundred eighty-five thousand, eight hundred eighty-eight".