6728963 has 2 divisors, whose sum is σ = 6728964. Its totient is φ = 6728962.

The previous prime is 6728947. The next prime is 6728977. The reversal of 6728963 is 3698276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6728963 - 2⁴ = 6728947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6728963.

It is not a weakly prime, because it can be changed into another prime (6728563) 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, 3364481 + 3364482.

It is an arithmetic number, because the mean of its divisors is an integer number (3364482).

Almost surely, 2^6728963 is an apocalyptic number.

6728963 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728963 is an equidigital number, since it uses as much as digits as its factorization.

6728963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 6728963 is about 2594.0244794527. The cubic root of 6728963 is about 188.7916201364.

The spelling of 6728963 in words is "six million, seven hundred twenty-eight thousand, nine hundred sixty-three".