6855222 has 16 divisors (see below), whose sum is σ = 14956992. Its totient is φ = 2077320.

The previous prime is 6855221. The next prime is 6855227. The reversal of 6855222 is 2225586.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 8⁷ + 5⁶ + 5⁶ + 2¹³ + 2¹⁹ + 2²² .

It is a self number, because there is not a number n which added to its sum of digits gives 6855222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51868 + ... + 51999.

It is an arithmetic number, because the mean of its divisors is an integer number (934812).

Almost surely, 2^6855222 is an apocalyptic number.

6855222 is an abundant number, since it is smaller than the sum of its proper divisors (8101770).

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

6855222 is a wasteful number, since it uses less digits than its factorization.

6855222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103883.

The product of its digits is 9600, while the sum is 30.

The square root of 6855222 is about 2618.2478874240. The cubic root of 6855222 is about 189.9651090133.

The spelling of 6855222 in words is "six million, eight hundred fifty-five thousand, two hundred twenty-two".