6559889 has 4 divisors (see below), whose sum is σ = 7497024. Its totient is φ = 5622756.

The previous prime is 6559873. The next prime is 6559897. The reversal of 6559889 is 9889556.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6559889 - 2⁴ = 6559873 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468557 + ... + 468570.

It is an arithmetic number, because the mean of its divisors is an integer number (1874256).

Almost surely, 2^6559889 is an apocalyptic number.

It is an amenable number.

6559889 is a deficient number, since it is larger than the sum of its proper divisors (937135).

6559889 is an equidigital number, since it uses as much as digits as its factorization.

6559889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937134.

The product of its digits is 777600, while the sum is 50.

The square root of 6559889 is about 2561.2280257720. The cubic root of 6559889 is about 187.1969766143.

The spelling of 6559889 in words is "six million, five hundred fifty-nine thousand, eight hundred eighty-nine".