4855809 has 16 divisors (see below), whose sum is σ = 7639040. Its totient is φ = 2684880.

The previous prime is 4855801. The next prime is 4855813. The reversal of 4855809 is 9085584.

It is not a de Polignac number, because 4855809 - 2³ = 4855801 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4855801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079 + ... + 4380.

It is an arithmetic number, because the mean of its divisors is an integer number (477440).

Almost surely, 2^4855809 is an apocalyptic number.

It is an amenable number.

4855809 is a deficient number, since it is larger than the sum of its proper divisors (2783231).

4855809 is a wasteful number, since it uses less digits than its factorization.

4855809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 4855809 is about 2203.5900253904. The cubic root of 4855809 is about 169.3377812948.

The spelling of 4855809 in words is "four million, eight hundred fifty-five thousand, eight hundred nine".