8579609 has 4 divisors (see below), whose sum is σ = 8592420. Its totient is φ = 8566800.

The previous prime is 8579573. The next prime is 8579633. The reversal of 8579609 is 9069758.

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 5784025 + 2795584 = 2405^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 8579609 - 2⁸ = 8579353 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8579609.

It is not an unprimeable number, because it can be changed into a prime (8579639) 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, 5342 + ... + 6759.

It is an arithmetic number, because the mean of its divisors is an integer number (2148105).

Almost surely, 2^8579609 is an apocalyptic number.

It is an amenable number.

8579609 is a deficient number, since it is larger than the sum of its proper divisors (12811).

8579609 is a wasteful number, since it uses less digits than its factorization.

8579609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12810.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 8579609 is about 2929.0969598154. The cubic root of 8579609 is about 204.7179066651.

The spelling of 8579609 in words is "eight million, five hundred seventy-nine thousand, six hundred nine".