9563921 has 2 divisors, whose sum is σ = 9563922. Its totient is φ = 9563920.

The previous prime is 9563899. The next prime is 9563933. The reversal of 9563921 is 1293659.

9563921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 4456321 = 2260^2 + 2111^2 .

It is an emirp because it is prime and its reverse (1293659) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9563921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9563941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4781960 + 4781961.

It is an arithmetic number, because the mean of its divisors is an integer number (4781961).

Almost surely, 2^9563921 is an apocalyptic number.

It is an amenable number.

9563921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9563921 is an equidigital number, since it uses as much as digits as its factorization.

9563921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 9563921 is about 3092.5589727603. The cubic root of 9563921 is about 212.2651319699.

The spelling of 9563921 in words is "nine million, five hundred sixty-three thousand, nine hundred twenty-one".