989720295 has 16 divisors (see below), whose sum is σ = 1603599360. Its totient is φ = 521168544.

The previous prime is 989720287. The next prime is 989720299. The reversal of 989720295 is 592027989.

It is not a de Polignac number, because 989720295 - 2³ = 989720287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989720299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416419 + ... + 418788.

It is an arithmetic number, because the mean of its divisors is an integer number (100224960).

Almost surely, 2^989720295 is an apocalyptic number.

989720295 is a deficient number, since it is larger than the sum of its proper divisors (613879065).

989720295 is a wasteful number, since it uses less digits than its factorization.

989720295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835294.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 989720295 is about 31459.8203268868. The cubic root of 989720295 is about 996.5616227788.

The spelling of 989720295 in words is "nine hundred eighty-nine million, seven hundred twenty thousand, two hundred ninety-five".