6855589 has 4 divisors (see below), whose sum is σ = 7382956. Its totient is φ = 6328224.

The previous prime is 6855529. The next prime is 6855593. The reversal of 6855589 is 9855586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4133089 + 2722500 = 2033^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 6855589 - 2⁷ = 6855461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855529) 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, 263664 + ... + 263689.

It is an arithmetic number, because the mean of its divisors is an integer number (1845739).

Almost surely, 2^6855589 is an apocalyptic number.

It is an amenable number.

6855589 is a deficient number, since it is larger than the sum of its proper divisors (527367).

6855589 is a wasteful number, since it uses less digits than its factorization.

6855589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527366.

The product of its digits is 432000, while the sum is 46.

The square root of 6855589 is about 2618.3179715229. The cubic root of 6855589 is about 189.9684989327.

It can be divided in two parts, 68555 and 89, that added together give a square (68644 = 262²).

The spelling of 6855589 in words is "six million, eight hundred fifty-five thousand, five hundred eighty-nine".