6856446 has 16 divisors (see below), whose sum is σ = 13742208. Its totient is φ = 2280600.

The previous prime is 6856429. The next prime is 6856459. The reversal of 6856446 is 6446586.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2881 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (858888).

Almost surely, 2^6856446 is an apocalyptic number.

6856446 is an abundant number, since it is smaller than the sum of its proper divisors (6885762).

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

6856446 is a wasteful number, since it uses less digits than its factorization.

6856446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its digits is 138240, while the sum is 39.

The square root of 6856446 is about 2618.4816210927. The cubic root of 6856446 is about 189.9764144315.

The spelling of 6856446 in words is "six million, eight hundred fifty-six thousand, four hundred forty-six".