6579889 has 2 divisors, whose sum is σ = 6579890. Its totient is φ = 6579888.

The previous prime is 6579883. The next prime is 6579899. The reversal of 6579889 is 9889756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 153664 = 2535^2 + 392^2 .

It is a cyclic number.

It is not a de Polignac number, because 6579889 - 2⁷ = 6579761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6579883) 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, 3289944 + 3289945.

It is an arithmetic number, because the mean of its divisors is an integer number (3289945).

Almost surely, 2^6579889 is an apocalyptic number.

It is an amenable number.

6579889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6579889 is an equidigital number, since it uses as much as digits as its factorization.

6579889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 52.

The square root of 6579889 is about 2565.1294314323. The cubic root of 6579889 is about 187.3870276494.

The spelling of 6579889 in words is "six million, five hundred seventy-nine thousand, eight hundred eighty-nine".