8399808563 has 2 divisors, whose sum is σ = 8399808564. Its totient is φ = 8399808562.

The previous prime is 8399808533. The next prime is 8399808631. The reversal of 8399808563 is 3658089938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8399808563 - 2²⁶ = 8332699699 is a prime.

It is not a weakly prime, because it can be changed into another prime (8399808533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4199904281 + 4199904282.

It is an arithmetic number, because the mean of its divisors is an integer number (4199904282).

Almost surely, 2^8399808563 is an apocalyptic number.

8399808563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8399808563 is an equidigital number, since it uses as much as digits as its factorization.

8399808563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The square root of 8399808563 is about 91650.4695187101. The cubic root of 8399808563 is about 2032.7772709831. Note that the first 3 decimals are identical.

The spelling of 8399808563 in words is "eight billion, three hundred ninety-nine million, eight hundred eight thousand, five hundred sixty-three".