6826 has 4 divisors (see below), whose sum is σ = 10242. Its totient is φ = 3412.

The previous prime is 6823. The next prime is 6827. The reversal of 6826 is 6286.

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

It can be written as a sum of positive squares in only one way, i.e., 4225 + 2601 = 65^2 + 51^2 .

It is a plaindrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 6797 and 6806.

It is not an unprimeable number, because it can be changed into a prime (6823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705 + ... + 1708.

2⁶⁸²⁶ is an apocalyptic number.

6826 is a deficient number, since it is larger than the sum of its proper divisors (3416).

6826 is a wasteful number, since it uses less digits than its factorization.

6826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415.

The product of its digits is 576, while the sum is 22.

The square root of 6826 is about 82.6196102629. The cubic root of 6826 is about 18.9694800876.

The spelling of 6826 in words is "six thousand, eight hundred twenty-six".