89988288 has 112 divisors (see below), whose sum is σ = 264907776. Its totient is φ = 26772480.

The previous prime is 89988287. The next prime is 89988289. The reversal of 89988288 is 88288998.

It is an interprime number because it is at equal distance from previous prime (89988287) and next prime (89988289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89988281) 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, 76795 + ... + 77957.

It is an arithmetic number, because the mean of its divisors is an integer number (2365248).

Almost surely, 2^89988288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89988288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132453888).

89988288 is an abundant number, since it is smaller than the sum of its proper divisors (174919488).

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

89988288 is a wasteful number, since it uses less digits than its factorization.

89988288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1212 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 60.

The square root of 89988288 is about 9486.2156838225. The cubic root of 89988288 is about 448.1210344745.

The spelling of 89988288 in words is "eighty-nine million, nine hundred eighty-eight thousand, two hundred eighty-eight".