6889656 has 32 divisors (see below), whose sum is σ = 17306640. Its totient is φ = 2285568.

The previous prime is 6889643. The next prime is 6889661. The reversal of 6889656 is 6569886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 6726.

Almost surely, 2^6889656 is an apocalyptic number.

It is an amenable number.

6889656 is an abundant number, since it is smaller than the sum of its proper divisors (10416984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6889656 is a wasteful number, since it uses less digits than its factorization.

6889656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1379 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 6889656 is about 2624.8154220821. The cubic root of 6889656 is about 190.2826448863.

The spelling of 6889656 in words is "six million, eight hundred eighty-nine thousand, six hundred fifty-six".