988947800 has 96 divisors (see below), whose sum is σ = 2449530720. Its totient is φ = 370022400.

The previous prime is 988947787. The next prime is 988947871. The reversal of 988947800 is 8749889.

988947800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×988947800² = 1956035502249680000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 614597 + ... + 616203.

It is an arithmetic number, because the mean of its divisors is an integer number (25515945).

Almost surely, 2^988947800 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 988947800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224765360).

988947800 is an abundant number, since it is smaller than the sum of its proper divisors (1460582920).

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

988947800 is a wasteful number, since it uses less digits than its factorization.

988947800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 988947800 is about 31447.5404443654. The cubic root of 988947800 is about 996.3022770314.

The spelling of 988947800 in words is "nine hundred eighty-eight million, nine hundred forty-seven thousand, eight hundred".