8399563 has 2 divisors, whose sum is σ = 8399564. Its totient is φ = 8399562.

The previous prime is 8399561. The next prime is 8399569. The reversal of 8399563 is 3659938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8399563 - 2¹ = 8399561 is a prime.

Together with 8399561, it forms a pair of twin primes.

8399563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8399561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4199781 + 4199782.

It is an arithmetic number, because the mean of its divisors is an integer number (4199782).

Almost surely, 2^8399563 is an apocalyptic number.

8399563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8399563 is an equidigital number, since it uses as much as digits as its factorization.

8399563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 8399563 is about 2898.1999585950. The cubic root of 8399563 is about 203.2757461811.

The spelling of 8399563 in words is "eight million, three hundred ninety-nine thousand, five hundred sixty-three".