4568609 has 2 divisors, whose sum is σ = 4568610. Its totient is φ = 4568608.

The previous prime is 4568591. The next prime is 4568623. The reversal of 4568609 is 9068654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2650384 + 1918225 = 1628^2 + 1385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4568609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4568639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284304 + 2284305.

It is an arithmetic number, because the mean of its divisors is an integer number (2284305).

Almost surely, 2^4568609 is an apocalyptic number.

It is an amenable number.

4568609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4568609 is an equidigital number, since it uses as much as digits as its factorization.

4568609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 4568609 is about 2137.4304667053. The cubic root of 4568609 is about 165.9311782259.

The spelling of 4568609 in words is "four million, five hundred sixty-eight thousand, six hundred nine".