6856222 has 8 divisors (see below), whose sum is σ = 10365696. Its totient is φ = 3400992.

The previous prime is 6856189. The next prime is 6856229. The reversal of 6856222 is 2226586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6856222² = 94015560226568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13243 + ... + 13750.

It is an arithmetic number, because the mean of its divisors is an integer number (1295712).

Almost surely, 2^6856222 is an apocalyptic number.

6856222 is a deficient number, since it is larger than the sum of its proper divisors (3509474).

6856222 is a wasteful number, since it uses less digits than its factorization.

6856222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27122.

The product of its digits is 11520, while the sum is 31.

The square root of 6856222 is about 2618.4388478634. The cubic root of 6856222 is about 189.9743455667.

The spelling of 6856222 in words is "six million, eight hundred fifty-six thousand, two hundred twenty-two".