117827388 has 72 divisors (see below), whose sum is σ = 349617632. Its totient is φ = 32752512.

The previous prime is 117827387. The next prime is 117827389. The reversal of 117827388 is 883728711.

It is an interprime number because it is at equal distance from previous prime (117827387) and next prime (117827389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117827383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3006 + ... + 15642.

Almost surely, 2^117827388 is an apocalyptic number.

117827388 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 117827388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174808816).

117827388 is an abundant number, since it is smaller than the sum of its proper divisors (231790244).

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

117827388 is a wasteful number, since it uses less digits than its factorization.

117827388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12691 (or 12686 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The square root of 117827388 is about 10854.8324722218. The cubic root of 117827388 is about 490.2475328533.

The spelling of 117827388 in words is "one hundred seventeen million, eight hundred twenty-seven thousand, three hundred eighty-eight".