988552788 has 96 divisors (see below), whose sum is σ = 2592414720. Its totient is φ = 291540480.

The previous prime is 988552781. The next prime is 988552801. The reversal of 988552788 is 887255889.

It is a happy number.

It is a super-2 number, since 2×988552788² = 1954473229325145888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988552781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275043 + ... + 278613.

It is an arithmetic number, because the mean of its divisors is an integer number (27004320).

Almost surely, 2^988552788 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 988552788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296207360).

988552788 is an abundant number, since it is smaller than the sum of its proper divisors (1603861932).

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

988552788 is a wasteful number, since it uses less digits than its factorization.

988552788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677 (or 3675 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 60.

The square root of 988552788 is about 31441.2593259240. The cubic root of 988552788 is about 996.1696095084.

The spelling of 988552788 in words is "nine hundred eighty-eight million, five hundred fifty-two thousand, seven hundred eighty-eight".