4609409 has 4 divisors (see below), whose sum is σ = 5267904. Its totient is φ = 3950916.

The previous prime is 4609393. The next prime is 4609411. The reversal of 4609409 is 9049064.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4609409 - 2⁴ = 4609393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4609489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329237 + ... + 329250.

It is an arithmetic number, because the mean of its divisors is an integer number (1316976).

Almost surely, 2^4609409 is an apocalyptic number.

It is an amenable number.

4609409 is a deficient number, since it is larger than the sum of its proper divisors (658495).

4609409 is an equidigital number, since it uses as much as digits as its factorization.

4609409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658494.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 4609409 is about 2146.9534228762. The cubic root of 4609409 is about 166.4236649844.

The spelling of 4609409 in words is "four million, six hundred nine thousand, four hundred nine".