117988488 has 80 divisors (see below), whose sum is σ = 338613660. Its totient is φ = 38361600.

The previous prime is 117988487. The next prime is 117988489. The reversal of 117988488 is 884889711.

It is a happy number.

117988488 is a `hidden beast` number, since 11 + 79 + 88 + 488 = 666.

It is an interprime number because it is at equal distance from previous prime (117988487) and next prime (117988489).

It can be written as a sum of positive squares in 2 ways, for example, as 104898564 + 13089924 = 10242^2 + 3618^2 .

It is a super-2 number, since 2×117988488² = 27842566601052288, which contains 22 as substring.

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 (117988487) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24348 + ... + 28788.

Almost surely, 2^117988488 is an apocalyptic number.

117988488 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 117988488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169306830).

117988488 is an abundant number, since it is smaller than the sum of its proper divisors (220625172).

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

117988488 is a wasteful number, since it uses less digits than its factorization.

117988488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500 (or 4487 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The square root of 117988488 is about 10862.2505955258. The cubic root of 117988488 is about 490.4708621133.

The spelling of 117988488 in words is "one hundred seventeen million, nine hundred eighty-eight thousand, four hundred eighty-eight".