6885659 has 4 divisors (see below), whose sum is σ = 7511640. Its totient is φ = 6259680.

The previous prime is 6885649. The next prime is 6885667. The reversal of 6885659 is 9565886.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6885659 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 312974 + ... + 312995.

It is an arithmetic number, because the mean of its divisors is an integer number (1877910).

Almost surely, 2^6885659 is an apocalyptic number.

6885659 is a deficient number, since it is larger than the sum of its proper divisors (625981).

6885659 is a wasteful number, since it uses less digits than its factorization.

6885659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625980.

The product of its digits is 518400, while the sum is 47.

The square root of 6885659 is about 2624.0539247508. The cubic root of 6885659 is about 190.2458405883.

The spelling of 6885659 in words is "six million, eight hundred eighty-five thousand, six hundred fifty-nine".