989898759 has 16 divisors (see below), whose sum is σ = 1468933600. Its totient is φ = 658844928.

The previous prime is 989898739. The next prime is 989898781. The reversal of 989898759 is 957898989.

It is not a de Polignac number, because 989898759 - 2¹¹ = 989896711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989898709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13354 + ... + 46455.

It is an arithmetic number, because the mean of its divisors is an integer number (91808350).

Almost surely, 2^989898759 is an apocalyptic number.

989898759 is a deficient number, since it is larger than the sum of its proper divisors (479034841).

989898759 is a wasteful number, since it uses less digits than its factorization.

989898759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60431 (or 60425 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 72.

The square root of 989898759 is about 31462.6565788714. The cubic root of 989898759 is about 996.6215183828.

The spelling of 989898759 in words is "nine hundred eighty-nine million, eight hundred ninety-eight thousand, seven hundred fifty-nine".