89988912 has 120 divisors (see below), whose sum is σ = 276638544. Its totient is φ = 27136512.

The previous prime is 89988911. The next prime is 89988917. The reversal of 89988912 is 21988998.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (89988911) 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, 98763 + ... + 99669.

Almost surely, 2^89988912 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 89988912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138319272).

89988912 is an abundant number, since it is smaller than the sum of its proper divisors (186649632).

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

89988912 is a wasteful number, since it uses less digits than its factorization.

89988912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 978 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The square root of 89988912 is about 9486.2485735933. The cubic root of 89988912 is about 448.1220702644.

The spelling of 89988912 in words is "eighty-nine million, nine hundred eighty-eight thousand, nine hundred twelve".