6826805 has 4 divisors (see below), whose sum is σ = 8192172. Its totient is φ = 5461440.

The previous prime is 6826801. The next prime is 6826811. The reversal of 6826805 is 5086286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5086286 = 2 ⋅2543143.

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 5121169 = 1306^2 + 2263^2 .

It is not a de Polignac number, because 6826805 - 2² = 6826801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6826801) 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 3 ways as a sum of consecutive naturals, for example, 682676 + ... + 682685.

It is an arithmetic number, because the mean of its divisors is an integer number (2048043).

Almost surely, 2^6826805 is an apocalyptic number.

It is an amenable number.

6826805 is a deficient number, since it is larger than the sum of its proper divisors (1365367).

6826805 is a wasteful number, since it uses less digits than its factorization.

6826805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365366.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 6826805 is about 2612.8155311847. The cubic root of 6826805 is about 189.7022575769.

The spelling of 6826805 in words is "six million, eight hundred twenty-six thousand, eight hundred five".