4809609 has 12 divisors (see below), whose sum is σ = 7939776. Its totient is φ = 2748312.

The previous prime is 4809583. The next prime is 4809643. The reversal of 4809609 is 9069084.

4809609 is a `hidden beast` number, since 48 + 0 + 9 + 609 = 666.

It is not a de Polignac number, because 4809609 - 2⁵ = 4809577 is a prime.

It is a super-3 number, since 3×4809609³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4809689) 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, 38109 + ... + 38234.

It is an arithmetic number, because the mean of its divisors is an integer number (661648).

Almost surely, 2^4809609 is an apocalyptic number.

It is an amenable number.

4809609 is a deficient number, since it is larger than the sum of its proper divisors (3130167).

4809609 is a wasteful number, since it uses less digits than its factorization.

4809609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76356 (or 76353 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 4809609 is about 2193.0820778074. The cubic root of 4809609 is about 168.7990211491.

The spelling of 4809609 in words is "four million, eight hundred nine thousand, six hundred nine".