5668609 has 2 divisors, whose sum is σ = 5668610. Its totient is φ = 5668608.

The previous prime is 5668591. The next prime is 5668627. The reversal of 5668609 is 9068665.

It is a balanced prime because it is at equal distance from previous prime (5668591) and next prime (5668627).

It can be written as a sum of positive squares in only one way, i.e., 2873025 + 2795584 = 1695^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 5668609 - 2⁵ = 5668577 is a prime.

It is not a weakly prime, because it can be changed into another prime (5668639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2834304 + 2834305.

It is an arithmetic number, because the mean of its divisors is an integer number (2834305).

Almost surely, 2^5668609 is an apocalyptic number.

It is an amenable number.

5668609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5668609 is an equidigital number, since it uses as much as digits as its factorization.

5668609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 5668609 is about 2380.8840794965. The cubic root of 5668609 is about 178.3030753877.

The spelling of 5668609 in words is "five million, six hundred sixty-eight thousand, six hundred nine".