6985589 has 16 divisors (see below), whose sum is σ = 8093232. Its totient is φ = 5971968.

The previous prime is 6985579. The next prime is 6985603. The reversal of 6985589 is 9855896.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 380689 + 6604900 = 617^2 + 2570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6985589 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 (6985519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15917 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (505827).

Almost surely, 2^6985589 is an apocalyptic number.

It is an amenable number.

6985589 is a deficient number, since it is larger than the sum of its proper divisors (1107643).

6985589 is a wasteful number, since it uses less digits than its factorization.

6985589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

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

The square root of 6985589 is about 2643.0264849222. The cubic root of 6985589 is about 191.1617554647.

It can be divided in two parts, 69 and 85589, that added together give a palindrome (85658).

The spelling of 6985589 in words is "six million, nine hundred eighty-five thousand, five hundred eighty-nine".