988973664 has 72 divisors (see below), whose sum is σ = 3019916088. Its totient is φ = 282562560.

The previous prime is 988973653. The next prime is 988973707. The reversal of 988973664 is 466379889.

It is a junction number, because it is equal to n+sod(n) for n = 988973598 and 988973607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100417 + ... + 109824.

It is an arithmetic number, because the mean of its divisors is an integer number (41943279).

Almost surely, 2^988973664 is an apocalyptic number.

It is an amenable number.

988973664 is an abundant number, since it is smaller than the sum of its proper divisors (2030942424).

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

988973664 is a wasteful number, since it uses less digits than its factorization.

988973664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210268 (or 210253 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The square root of 988973664 is about 31447.9516662055. The cubic root of 988973664 is about 996.3109624030.

The spelling of 988973664 in words is "nine hundred eighty-eight million, nine hundred seventy-three thousand, six hundred sixty-four".