4564609 has 4 divisors (see below), whose sum is σ = 5216704. Its totient is φ = 3912516.

The previous prime is 4564607. The next prime is 4564613. The reversal of 4564609 is 9064654.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9064654 = 2 ⋅4532327.

It is a cyclic number.

It is not a de Polignac number, because 4564609 - 2¹ = 4564607 is a prime.

It is a Duffinian number.

4564609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4564601) 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, 326037 + ... + 326050.

It is an arithmetic number, because the mean of its divisors is an integer number (1304176).

Almost surely, 2^4564609 is an apocalyptic number.

It is an amenable number.

4564609 is a deficient number, since it is larger than the sum of its proper divisors (652095).

4564609 is an equidigital number, since it uses as much as digits as its factorization.

4564609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652094.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 4564609 is about 2136.4945588510. The cubic root of 4564609 is about 165.8827376238.

The spelling of 4564609 in words is "four million, five hundred sixty-four thousand, six hundred nine".