6820841 has 2 divisors, whose sum is σ = 6820842. Its totient is φ = 6820840.

The previous prime is 6820823. The next prime is 6820873. The reversal of 6820841 is 1480286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 495616 = 2515^2 + 704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6820841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6820141) 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 as a sum of consecutive naturals, namely, 3410420 + 3410421.

It is an arithmetic number, because the mean of its divisors is an integer number (3410421).

Almost surely, 2^6820841 is an apocalyptic number.

It is an amenable number.

6820841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6820841 is an equidigital number, since it uses as much as digits as its factorization.

6820841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 6820841 is about 2611.6739842484. The cubic root of 6820841 is about 189.6469992294.

The spelling of 6820841 in words is "six million, eight hundred twenty thousand, eight hundred forty-one".