6396851 has 2 divisors, whose sum is σ = 6396852. Its totient is φ = 6396850.

The previous prime is 6396847. The next prime is 6396853. The reversal of 6396851 is 1586936.

6396851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6396851 - 2² = 6396847 is a prime.

Together with 6396853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6396853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198425 + 3198426.

It is an arithmetic number, because the mean of its divisors is an integer number (3198426).

Almost surely, 2^6396851 is an apocalyptic number.

6396851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6396851 is an equidigital number, since it uses as much as digits as its factorization.

6396851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 6396851 is about 2529.1996757868. The cubic root of 6396851 is about 185.6330975922.

The spelling of 6396851 in words is "six million, three hundred ninety-six thousand, eight hundred fifty-one".