988989888 has 56 divisors (see below), whose sum is σ = 2623799680. Its totient is φ = 328769280.

The previous prime is 988989803. The next prime is 988989901. The reversal of 988989888 is 888989889.

988989888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65973 + ... + 79563.

Almost surely, 2^988989888 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 988989888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311899840).

988989888 is an abundant number, since it is smaller than the sum of its proper divisors (1634809792).

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

988989888 is a wasteful number, since it uses less digits than its factorization.

988989888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13985 (or 13975 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 75.

The square root of 988989888 is about 31448.2096151752. The cubic root of 988989888 is about 996.3164104957.

Subtracting from 988989888 its reverse (888989889), we obtain a palindrome (99999999).

The spelling of 988989888 in words is "nine hundred eighty-eight million, nine hundred eighty-nine thousand, eight hundred eighty-eight".