5809909 has 4 divisors (see below), whose sum is σ = 6639904. Its totient is φ = 4979916.

The previous prime is 5809891. The next prime is 5809931. The reversal of 5809909 is 9099085.

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 5809909 - 2¹³ = 5801717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5809939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414987 + ... + 415000.

It is an arithmetic number, because the mean of its divisors is an integer number (1659976).

Almost surely, 2^5809909 is an apocalyptic number.

It is an amenable number.

5809909 is a deficient number, since it is larger than the sum of its proper divisors (829995).

5809909 is an equidigital number, since it uses as much as digits as its factorization.

5809909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829994.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 5809909 is about 2410.3752819841. The cubic root of 5809909 is about 179.7724387692.

The spelling of 5809909 in words is "five million, eight hundred nine thousand, nine hundred nine".