8206809 has 12 divisors (see below), whose sum is σ = 11849616. Its totient is φ = 5050032.

The previous prime is 8206799. The next prime is 8206817. The reversal of 8206809 is 9086028.

It is not a de Polignac number, because 8206809 - 2⁵ = 8206777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8206809.

It is not an unprimeable number, because it can be changed into a prime (8206829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7587 + ... + 8600.

It is an arithmetic number, because the mean of its divisors is an integer number (987468).

Almost surely, 2^8206809 is an apocalyptic number.

It is an amenable number.

8206809 is a deficient number, since it is larger than the sum of its proper divisors (3642807).

8206809 is a wasteful number, since it uses less digits than its factorization.

8206809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16216 (or 16203 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8206809 is about 2864.7528689226. The cubic root of 8206809 is about 201.7087673261.

The spelling of 8206809 in words is "eight million, two hundred six thousand, eight hundred nine".