5579809 has 4 divisors (see below), whose sum is σ = 5709616. Its totient is φ = 5450004.

The previous prime is 5579801. The next prime is 5579831. The reversal of 5579809 is 9089755.

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.

It is a cyclic number.

It is not a de Polignac number, because 5579809 - 2³ = 5579801 is a prime.

It is a super-2 number, since 2×5579809² = 62268536952962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 129763 = 5579809 / (5 + 5 + 7 + 9 + 8 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5579801) 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, 64839 + ... + 64924.

It is an arithmetic number, because the mean of its divisors is an integer number (1427404).

Almost surely, 2^5579809 is an apocalyptic number.

It is an amenable number.

5579809 is a deficient number, since it is larger than the sum of its proper divisors (129807).

5579809 is a wasteful number, since it uses less digits than its factorization.

5579809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129806.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 5579809 is about 2362.1619334838. The cubic root of 5579809 is about 177.3671186908.

The spelling of 5579809 in words is "five million, five hundred seventy-nine thousand, eight hundred nine".