6855806 has 4 divisors (see below), whose sum is σ = 10283712. Its totient is φ = 3427902.

The previous prime is 6855799. The next prime is 6855809. The reversal of 6855806 is 6085586.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6855806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855809) 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 as a sum of consecutive naturals, namely, 1713950 + ... + 1713953.

It is an arithmetic number, because the mean of its divisors is an integer number (2570928).

Almost surely, 2^6855806 is an apocalyptic number.

6855806 is a deficient number, since it is larger than the sum of its proper divisors (3427906).

6855806 is a wasteful number, since it uses less digits than its factorization.

6855806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427905.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 6855806 is about 2618.3594100123. The cubic root of 6855806 is about 189.9705032696.

It can be divided in two parts, 685580 and 6, that added together give a palindrome (685586).

The spelling of 6855806 in words is "six million, eight hundred fifty-five thousand, eight hundred six".