9998589 has 4 divisors (see below), whose sum is σ = 13331456. Its totient is φ = 6665724.

The previous prime is 9998587. The next prime is 9998603. The reversal of 9998589 is 9858999.

9998589 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9998589 - 2¹ = 9998587 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666429 + ... + 1666434.

It is an arithmetic number, because the mean of its divisors is an integer number (3332864).

Almost surely, 2^9998589 is an apocalyptic number.

It is an amenable number.

9998589 is a deficient number, since it is larger than the sum of its proper divisors (3332867).

9998589 is a wasteful number, since it uses less digits than its factorization.

9998589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332866.

The product of its digits is 2099520, while the sum is 57.

The square root of 9998589 is about 3162.0545536091. The cubic root of 9998589 is about 215.4333355021.

The spelling of 9998589 in words is "nine million, nine hundred ninety-eight thousand, five hundred eighty-nine".