2689579 has 4 divisors (see below), whose sum is σ = 2694384. Its totient is φ = 2684776.

The previous prime is 2689573. The next prime is 2689601. The reversal of 2689579 is 9759862.

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

It is a cyclic number.

It is not a de Polignac number, because 2689579 - 2³ = 2689571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689571) 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, 1432 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (673596).

2^2689579 is an apocalyptic number.

2689579 is a deficient number, since it is larger than the sum of its proper divisors (4805).

2689579 is an equidigital number, since it uses as much as digits as its factorization.

2689579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its digits is 272160, while the sum is 46.

The square root of 2689579 is about 1639.9935975485. The cubic root of 2689579 is about 139.0682858932.

The spelling of 2689579 in words is "two million, six hundred eighty-nine thousand, five hundred seventy-nine".