9979589 has 4 divisors (see below), whose sum is σ = 9985920. Its totient is φ = 9973260.

The previous prime is 9979577. The next prime is 9979609. The reversal of 9979589 is 9859799.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9979589 - 2¹⁶ = 9914053 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 (9979549) 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, 1292 + ... + 4650.

It is an arithmetic number, because the mean of its divisors is an integer number (2496480).

Almost surely, 2^9979589 is an apocalyptic number.

It is an amenable number.

9979589 is a deficient number, since it is larger than the sum of its proper divisors (6331).

9979589 is a wasteful number, since it uses less digits than its factorization.

9979589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its digits is 1837080, while the sum is 56.

The square root of 9979589 is about 3159.0487492282. The cubic root of 9979589 is about 215.2967886066.

The spelling of 9979589 in words is "nine million, nine hundred seventy-nine thousand, five hundred eighty-nine".