5809809 has 12 divisors (see below), whose sum is σ = 7866096. Its totient is φ = 3814128.

The previous prime is 5809757. The next prime is 5809829. The reversal of 5809809 is 9089085.

It is not a de Polignac number, because 5809809 - 2⁷ = 5809681 is a prime.

5809809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5809829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35562 + ... + 35724.

It is an arithmetic number, because the mean of its divisors is an integer number (655508).

Almost surely, 2^5809809 is an apocalyptic number.

It is an amenable number.

5809809 is a deficient number, since it is larger than the sum of its proper divisors (2056287).

5809809 is a wasteful number, since it uses less digits than its factorization.

5809809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 5809809 is about 2410.3545382371. The cubic root of 5809809 is about 179.7714073504.

The spelling of 5809809 in words is "five million, eight hundred nine thousand, eight hundred nine".