6851441 has 2 divisors, whose sum is σ = 6851442. Its totient is φ = 6851440.

The previous prime is 6851437. The next prime is 6851443. The reversal of 6851441 is 1441586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 112225 = 2596^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 6851441 - 2² = 6851437 is a prime.

It is a Sophie Germain prime.

Together with 6851443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6851443) 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, 3425720 + 3425721.

It is an arithmetic number, because the mean of its divisors is an integer number (3425721).

Almost surely, 2^6851441 is an apocalyptic number.

It is an amenable number.

6851441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6851441 is an equidigital number, since it uses as much as digits as its factorization.

6851441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 6851441 is about 2617.5257400836. The cubic root of 6851441 is about 189.9301774837.

The spelling of 6851441 in words is "six million, eight hundred fifty-one thousand, four hundred forty-one".