6885689 has 8 divisors (see below), whose sum is σ = 7138560. Its totient is φ = 6634800.

The previous prime is 6885679. The next prime is 6885691. The reversal of 6885689 is 9865886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6885689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6885649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11774 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (892320).

Almost surely, 2^6885689 is an apocalyptic number.

It is an amenable number.

6885689 is a deficient number, since it is larger than the sum of its proper divisors (252871).

6885689 is a wasteful number, since it uses less digits than its factorization.

6885689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its digits is 829440, while the sum is 50.

The square root of 6885689 is about 2624.0596410905. The cubic root of 6885689 is about 190.2461168808.

The spelling of 6885689 in words is "six million, eight hundred eighty-five thousand, six hundred eighty-nine".