6856122 has 64 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 1741824.

The previous prime is 6856121. The next prime is 6856123. The reversal of 6856122 is 2216586.

It is an interprime number because it is at equal distance from previous prime (6856121) and next prime (6856123).

It is a self number, because there is not a number n which added to its sum of digits gives 6856122.

It is not an unprimeable number, because it can be changed into a prime (6856121) 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 31 ways as a sum of consecutive naturals, for example, 15618 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

Almost surely, 2^6856122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6856122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

6856122 is an abundant number, since it is smaller than the sum of its proper divisors (10642758).

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

6856122 is a wasteful number, since it uses less digits than its factorization.

6856122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its digits is 5760, while the sum is 30.

The square root of 6856122 is about 2618.4197524461. The cubic root of 6856122 is about 189.9734219518.

The spelling of 6856122 in words is "six million, eight hundred fifty-six thousand, one hundred twenty-two".