979589 has 4 divisors (see below), whose sum is σ = 1054956. Its totient is φ = 904224.

The previous prime is 979567. The next prime is 979651. The reversal of 979589 is 985979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 550564 + 429025 = 742^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 979589 - 2⁸ = 979333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979589.

It is not an unprimeable number, because it can be changed into a prime (979519) 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 3 ways as a sum of consecutive naturals, for example, 37664 + ... + 37689.

It is an arithmetic number, because the mean of its divisors is an integer number (263739).

2⁹⁷⁹⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

979589 is a deficient number, since it is larger than the sum of its proper divisors (75367).

979589 is a wasteful number, since it uses less digits than its factorization.

979589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75366.

The product of its digits is 204120, while the sum is 47.

The square root of 979589 is about 989.7418855439. The cubic root of 979589 is about 99.3149511301.

The spelling of 979589 in words is "nine hundred seventy-nine thousand, five hundred eighty-nine".