6559867 has 2 divisors, whose sum is σ = 6559868. Its totient is φ = 6559866.

The previous prime is 6559859. The next prime is 6559871. The reversal of 6559867 is 7689556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6559867 - 2³ = 6559859 is a prime.

It is not a weakly prime, because it can be changed into another prime (6559897) 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, 3279933 + 3279934.

It is an arithmetic number, because the mean of its divisors is an integer number (3279934).

Almost surely, 2^6559867 is an apocalyptic number.

6559867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6559867 is an equidigital number, since it uses as much as digits as its factorization.

6559867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 6559867 is about 2561.2237309536. The cubic root of 6559867 is about 187.1967673456.

The spelling of 6559867 in words is "six million, five hundred fifty-nine thousand, eight hundred sixty-seven".