6856829 has 8 divisors (see below), whose sum is σ = 8177280. Its totient is φ = 5621616.

The previous prime is 6856819. The next prime is 6856841. The reversal of 6856829 is 9286586.

It is a happy number.

6856829 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6856829 - 2⁸ = 6856573 is a prime.

It is a super-2 number, since 2×6856829² = 94032207870482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6856829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21134 + ... + 21455.

It is an arithmetic number, because the mean of its divisors is an integer number (1022160).

Almost surely, 2^6856829 is an apocalyptic number.

It is an amenable number.

6856829 is a deficient number, since it is larger than the sum of its proper divisors (1320451).

6856829 is a wasteful number, since it uses less digits than its factorization.

6856829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42619.

The product of its digits is 207360, while the sum is 44.

The square root of 6856829 is about 2618.5547540580. The cubic root of 6856829 is about 189.9799517166.

The spelling of 6856829 in words is "six million, eight hundred fifty-six thousand, eight hundred twenty-nine".