6811806 has 16 divisors (see below), whose sum is σ = 13651200. Its totient is φ = 2266008.

The previous prime is 6811801. The next prime is 6811813. The reversal of 6811806 is 6081186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6811801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3525 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (853200).

Almost surely, 2^6811806 is an apocalyptic number.

6811806 is an abundant number, since it is smaller than the sum of its proper divisors (6839394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6811806 is a wasteful number, since it uses less digits than its factorization.

6811806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 6811806 is about 2609.9436775532. The cubic root of 6811806 is about 189.5632257009.

It can be divided in two parts, 681180 and 6, that added together give a palindrome (681186).

The spelling of 6811806 in words is "six million, eight hundred eleven thousand, eight hundred six".