3085809 has 16 divisors (see below), whose sum is σ = 4435200. Its totient is φ = 1902096.

The previous prime is 3085793. The next prime is 3085813. The reversal of 3085809 is 9085803.

It is not a de Polignac number, because 3085809 - 2⁴ = 3085793 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3085809.

It is not an unprimeable number, because it can be changed into a prime (3085009) 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 15 ways as a sum of consecutive naturals, for example, 1822 + ... + 3080.

It is an arithmetic number, because the mean of its divisors is an integer number (277200).

Almost surely, 2^3085809 is an apocalyptic number.

It is an amenable number.

3085809 is a deficient number, since it is larger than the sum of its proper divisors (1349391).

3085809 is a wasteful number, since it uses less digits than its factorization.

3085809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 3085809 is about 1756.6470903400. The cubic root of 3085809 is about 145.5871397338.

The spelling of 3085809 in words is "three million, eighty-five thousand, eight hundred nine".