6809685 has 16 divisors (see below), whose sum is σ = 10934016. Its totient is φ = 3619008.

The previous prime is 6809683. The next prime is 6809687. The reversal of 6809685 is 5869086.

6809685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6809683) and next prime (6809687).

It is not a de Polignac number, because 6809685 - 2¹ = 6809683 is a prime.

6809685 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4887 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (683376).

Almost surely, 2^6809685 is an apocalyptic number.

It is an amenable number.

6809685 is a deficient number, since it is larger than the sum of its proper divisors (4124331).

6809685 is a wasteful number, since it uses less digits than its factorization.

6809685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 6809685 is about 2609.5373153109. The cubic root of 6809685 is about 189.5435488174.

The spelling of 6809685 in words is "six million, eight hundred nine thousand, six hundred eighty-five".