6842681 has 2 divisors, whose sum is σ = 6842682. Its totient is φ = 6842680.

The previous prime is 6842651. The next prime is 6842701. The reversal of 6842681 is 1862486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6295081 + 547600 = 2509^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 6842681 - 2⁶ = 6842617 is a prime.

It is a super-2 number, since 2×6842681² = 93644566535522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6842611) 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, 3421340 + 3421341.

It is an arithmetic number, because the mean of its divisors is an integer number (3421341).

Almost surely, 2^6842681 is an apocalyptic number.

It is an amenable number.

6842681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6842681 is an equidigital number, since it uses as much as digits as its factorization.

6842681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 6842681 is about 2615.8518688947. The cubic root of 6842681 is about 189.8491970522.

The spelling of 6842681 in words is "six million, eight hundred forty-two thousand, six hundred eighty-one".