6856838 has 4 divisors (see below), whose sum is σ = 10285260. Its totient is φ = 3428418.

The previous prime is 6856819. The next prime is 6856841. The reversal of 6856838 is 8386586.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 1714208 + ... + 1714211.

It is an arithmetic number, because the mean of its divisors is an integer number (2571315).

Almost surely, 2^6856838 is an apocalyptic number.

6856838 is a deficient number, since it is larger than the sum of its proper divisors (3428422).

6856838 is a wasteful number, since it uses less digits than its factorization.

6856838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428421.

The product of its digits is 276480, while the sum is 44.

The square root of 6856838 is about 2618.5564725627. The cubic root of 6856838 is about 189.9800348366.

The spelling of 6856838 in words is "six million, eight hundred fifty-six thousand, eight hundred thirty-eight".