6378563 has 2 divisors, whose sum is σ = 6378564. Its totient is φ = 6378562.

The previous prime is 6378557. The next prime is 6378607. The reversal of 6378563 is 3658736.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6378563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6378503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3189281 + 3189282.

It is an arithmetic number, because the mean of its divisors is an integer number (3189282).

Almost surely, 2^6378563 is an apocalyptic number.

6378563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6378563 is an equidigital number, since it uses as much as digits as its factorization.

6378563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 6378563 is about 2525.5817151698. The cubic root of 6378563 is about 185.4560261742.

The spelling of 6378563 in words is "six million, three hundred seventy-eight thousand, five hundred sixty-three".