989664324 has 144 divisors (see below), whose sum is σ = 2766187200. Its totient is φ = 274095360.

The previous prime is 989664323. The next prime is 989664337. The reversal of 989664324 is 423466989.

989664324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (989664323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 799434 + ... + 800670.

Almost surely, 2^989664324 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 989664324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383093600).

989664324 is an abundant number, since it is smaller than the sum of its proper divisors (1776522876).

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

989664324 is a wasteful number, since it uses less digits than its factorization.

989664324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1301 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The square root of 989664324 is about 31458.9307510602. The cubic root of 989664324 is about 996.5428364602.

The spelling of 989664324 in words is "nine hundred eighty-nine million, six hundred sixty-four thousand, three hundred twenty-four".