4995809 has 24 divisors (see below), whose sum is σ = 6394752. Its totient is φ = 3818880.

The previous prime is 4995779. The next prime is 4995827. The reversal of 4995809 is 9085994.

It is not a de Polignac number, because 4995809 - 2⁸ = 4995553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4995809.

It is not an unprimeable number, because it can be changed into a prime (4995889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48452 + ... + 48554.

It is an arithmetic number, because the mean of its divisors is an integer number (266448).

Almost surely, 2^4995809 is an apocalyptic number.

It is an amenable number.

4995809 is a deficient number, since it is larger than the sum of its proper divisors (1398943).

4995809 is a wasteful number, since it uses less digits than its factorization.

4995809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 4995809 is about 2235.1306449512. The cubic root of 4995809 is about 170.9498045847.

The spelling of 4995809 in words is "four million, nine hundred ninety-five thousand, eight hundred nine".