6809188 has 12 divisors (see below), whose sum is σ = 11943792. Its totient is φ = 3396680.

The previous prime is 6809167. The next prime is 6809189. The reversal of 6809188 is 8819086.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6809188.

It is not an unprimeable number, because it can be changed into a prime (6809189) 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 3 ways as a sum of consecutive naturals, for example, 231 + ... + 3697.

It is an arithmetic number, because the mean of its divisors is an integer number (995316).

Almost surely, 2^6809188 is an apocalyptic number.

It is an amenable number.

6809188 is a deficient number, since it is larger than the sum of its proper divisors (5134604).

6809188 is a wasteful number, since it uses less digits than its factorization.

6809188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3960 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 6809188 is about 2609.4420859640. The cubic root of 6809188 is about 189.5389374716.

The spelling of 6809188 in words is "six million, eight hundred nine thousand, one hundred eighty-eight".