28579 has 2 divisors, whose sum is σ = 28580. Its totient is φ = 28578.

The previous prime is 28573. The next prime is 28591. The reversal of 28579 is 97582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28579 - 2³ = 28571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28579.

It is not a weakly prime, because it can be changed into another prime (28571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14289 + 14290.

It is an arithmetic number, because the mean of its divisors is an integer number (14290).

2²⁸⁵⁷⁹ is an apocalyptic number.

28579 is a deficient number, since it is larger than the sum of its proper divisors (1).

28579 is an equidigital number, since it uses as much as digits as its factorization.

28579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 28579 is about 169.0532460499. The cubic root of 28579 is about 30.5737710794.

The spelling of 28579 in words is "twenty-eight thousand, five hundred seventy-nine".