5842809 has 18 divisors (see below), whose sum is σ = 9818250. Its totient is φ = 3338496.

The previous prime is 5842799. The next prime is 5842813. The reversal of 5842809 is 9082485.

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 1432809 = 2100^2 + 1197^2 .

It is not a de Polignac number, because 5842809 - 2⁵ = 5842777 is a prime.

5842809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5842819) 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 17 ways as a sum of consecutive naturals, for example, 6184 + ... + 7065.

Almost surely, 2^5842809 is an apocalyptic number.

It is an amenable number.

5842809 is a deficient number, since it is larger than the sum of its proper divisors (3975441).

5842809 is a wasteful number, since it uses less digits than its factorization.

5842809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269 (or 13259 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 5842809 is about 2417.1903110843. The cubic root of 5842809 is about 180.1111350729. Note that the first 4 decimals are identical.

The spelling of 5842809 in words is "five million, eight hundred forty-two thousand, eight hundred nine".