6809867 has 12 divisors (see below), whose sum is σ = 7269120. Its totient is φ = 6371568.

The previous prime is 6809851. The next prime is 6809893. The reversal of 6809867 is 7689086.

It is not a de Polignac number, because 6809867 - 2⁴ = 6809851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6809807) 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 11 ways as a sum of consecutive naturals, for example, 53558 + ... + 53684.

It is an arithmetic number, because the mean of its divisors is an integer number (605760).

Almost surely, 2^6809867 is an apocalyptic number.

6809867 is a deficient number, since it is larger than the sum of its proper divisors (459253).

6809867 is a wasteful number, since it uses less digits than its factorization.

6809867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6809867 is about 2609.5721871602. The cubic root of 6809867 is about 189.5452374231.

The spelling of 6809867 in words is "six million, eight hundred nine thousand, eight hundred sixty-seven".