989325720 has 192 divisors, whose sum is σ = 3350224800. Its totient is φ = 252887040.

The previous prime is 989325713. The next prime is 989325731. The reversal of 989325720 is 27523989.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2014675 + ... + 2015165.

Almost surely, 2^989325720 is an apocalyptic number.

989325720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989325720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675112400).

989325720 is an abundant number, since it is smaller than the sum of its proper divisors (2360899080).

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

989325720 is a wasteful number, since it uses less digits than its factorization.

989325720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 989325720 is about 31453.5486074306. The cubic root of 989325720 is about 996.4291710241.

The spelling of 989325720 in words is "nine hundred eighty-nine million, three hundred twenty-five thousand, seven hundred twenty".