6396751 has 2 divisors, whose sum is σ = 6396752. Its totient is φ = 6396750.

The previous prime is 6396707. The next prime is 6396773. The reversal of 6396751 is 1576936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6396751 - 2⁹ = 6396239 is a prime.

6396751 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6396751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6396701) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198375 + 3198376.

It is an arithmetic number, because the mean of its divisors is an integer number (3198376).

Almost surely, 2^6396751 is an apocalyptic number.

6396751 is a deficient number, since it is larger than the sum of its proper divisors (1).

6396751 is an equidigital number, since it uses as much as digits as its factorization.

6396751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 37.

The square root of 6396751 is about 2529.1799066100. The cubic root of 6396751 is about 185.6321302721.

The spelling of 6396751 in words is "six million, three hundred ninety-six thousand, seven hundred fifty-one".