6564289 has 2 divisors, whose sum is σ = 6564290. Its totient is φ = 6564288.

The previous prime is 6564287. The next prime is 6564301. The reversal of 6564289 is 9824656.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5253264 + 1311025 = 2292^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 6564289 - 2¹ = 6564287 is a prime.

Together with 6564287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6564287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282144 + 3282145.

It is an arithmetic number, because the mean of its divisors is an integer number (3282145).

Almost surely, 2^6564289 is an apocalyptic number.

It is an amenable number.

6564289 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564289 is an equidigital number, since it uses as much as digits as its factorization.

6564289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 6564289 is about 2562.0868447420. The cubic root of 6564289 is about 187.2388209509.

The spelling of 6564289 in words is "six million, five hundred sixty-four thousand, two hundred eighty-nine".