6564287 has 2 divisors, whose sum is σ = 6564288. Its totient is φ = 6564286.

The previous prime is 6564247. The next prime is 6564289. The reversal of 6564287 is 7824656.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6564287 - 2¹⁸ = 6302143 is a prime.

Together with 6564289, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6564287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6564289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282143 + 3282144.

It is an arithmetic number, because the mean of its divisors is an integer number (3282144).

Almost surely, 2^6564287 is an apocalyptic number.

6564287 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564287 is an equidigital number, since it uses as much as digits as its factorization.

6564287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 6564287 is about 2562.0864544351. The cubic root of 6564287 is about 187.2388019350.

It can be divided in two parts, 656428 and 7, that multiplied together give a triangular number (4594996 = T₃₀₃₁).

The spelling of 6564287 in words is "six million, five hundred sixty-four thousand, two hundred eighty-seven".