6856166 has 4 divisors (see below), whose sum is σ = 10284252. Its totient is φ = 3428082.

The previous prime is 6856159. The next prime is 6856181. The reversal of 6856166 is 6616586.

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

It is a congruent number.

It is an unprimeable number.

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, 1714040 + ... + 1714043.

It is an arithmetic number, because the mean of its divisors is an integer number (2571063).

Almost surely, 2^6856166 is an apocalyptic number.

6856166 is a deficient number, since it is larger than the sum of its proper divisors (3428086).

6856166 is a wasteful number, since it uses less digits than its factorization.

6856166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428085.

The product of its digits is 51840, while the sum is 38.

The square root of 6856166 is about 2618.4281544469. The cubic root of 6856166 is about 189.9738283434.

The spelling of 6856166 in words is "six million, eight hundred fifty-six thousand, one hundred sixty-six".