6560647 has 2 divisors, whose sum is σ = 6560648. Its totient is φ = 6560646.

The previous prime is 6560633. The next prime is 6560651. The reversal of 6560647 is 7460656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6560647 - 2¹¹ = 6558599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6560627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280323 + 3280324.

It is an arithmetic number, because the mean of its divisors is an integer number (3280324).

Almost surely, 2^6560647 is an apocalyptic number.

6560647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6560647 is an equidigital number, since it uses as much as digits as its factorization.

6560647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 6560647 is about 2561.3759973889. The cubic root of 6560647 is about 187.2041865861.

Subtracting 6560647 from its reverse (7460656), we obtain a palindrome (900009).

The spelling of 6560647 in words is "six million, five hundred sixty thousand, six hundred forty-seven".