989262720 has 192 divisors, whose sum is σ = 3543125040. Its totient is φ = 263761920.

The previous prime is 989262713. The next prime is 989262751. The reversal of 989262720 is 27262989.

It is a tau number, because it is divible by the number of its divisors (192).

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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152340 + ... + 158700.

Almost surely, 2^989262720 is an apocalyptic number.

989262720 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 989262720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771562520).

989262720 is an abundant number, since it is smaller than the sum of its proper divisors (2553862320).

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

989262720 is an equidigital number, since it uses as much as digits as its factorization.

989262720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395 (or 6371 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 989262720 is about 31452.5471146615. The cubic root of 989262720 is about 996.4080197932.

The spelling of 989262720 in words is "nine hundred eighty-nine million, two hundred sixty-two thousand, seven hundred twenty".