6855844 has 12 divisors (see below), whose sum is σ = 12016368. Its totient is φ = 3422600.

The previous prime is 6855829. The next prime is 6855869. The reversal of 6855844 is 4485586.

It is a junction number, because it is equal to n+sod(n) for n = 6855797 and 6855806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3579 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (1001364).

Almost surely, 2^6855844 is an apocalyptic number.

It is an amenable number.

6855844 is a deficient number, since it is larger than the sum of its proper divisors (5160524).

6855844 is a wasteful number, since it uses less digits than its factorization.

6855844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666 (or 2664 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 6855844 is about 2618.3666664545. The cubic root of 6855844 is about 189.9708542551.

It can be divided in two parts, 685584 and 4, that multiplied together give a square (2742336 = 1656²).

The spelling of 6855844 in words is "six million, eight hundred fifty-five thousand, eight hundred forty-four".