4905909 has 12 divisors (see below), whose sum is σ = 7207200. Its totient is φ = 3214824.

The previous prime is 4905899. The next prime is 4905917. The reversal of 4905909 is 9095094.

It is not a de Polignac number, because 4905909 - 2⁸ = 4905653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905949) 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, 4089 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (600600).

Almost surely, 2^4905909 is an apocalyptic number.

It is an amenable number.

4905909 is a deficient number, since it is larger than the sum of its proper divisors (2301291).

4905909 is a wasteful number, since it uses less digits than its factorization.

4905909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304 (or 9301 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 4905909 is about 2214.9286670229. The cubic root of 4905909 is about 169.9181728460.

The spelling of 4905909 in words is "four million, nine hundred five thousand, nine hundred nine".