9909563 has 2 divisors, whose sum is σ = 9909564. Its totient is φ = 9909562.

The previous prime is 9909551. The next prime is 9909593. The reversal of 9909563 is 3659099.

It is a happy number.

9909563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3659099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9909563 - 2⁶ = 9909499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9909563.

It is not a weakly prime, because it can be changed into another prime (9909533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4954781 + 4954782.

It is an arithmetic number, because the mean of its divisors is an integer number (4954782).

Almost surely, 2^9909563 is an apocalyptic number.

9909563 is a deficient number, since it is larger than the sum of its proper divisors (1).

9909563 is an equidigital number, since it uses as much as digits as its factorization.

9909563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 9909563 is about 3147.9458381618. The cubic root of 9909563 is about 214.7920325397.

The spelling of 9909563 in words is "nine million, nine hundred nine thousand, five hundred sixty-three".