6390563 has 2 divisors, whose sum is σ = 6390564. Its totient is φ = 6390562.

The previous prime is 6390551. The next prime is 6390569. The reversal of 6390563 is 3650936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6390563 - 2⁶ = 6390499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6390569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195281 + 3195282.

It is an arithmetic number, because the mean of its divisors is an integer number (3195282).

Almost surely, 2^6390563 is an apocalyptic number.

6390563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390563 is an equidigital number, since it uses as much as digits as its factorization.

6390563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 6390563 is about 2527.9562891791. The cubic root of 6390563 is about 185.5722528842.

The spelling of 6390563 in words is "six million, three hundred ninety thousand, five hundred sixty-three".