9789663 has 12 divisors (see below), whose sum is σ = 14134920. Its totient is φ = 6024096.

The previous prime is 9789641. The next prime is 9789667. The reversal of 9789663 is 3669879.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-9789663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9789667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9148 + ... + 10161.

It is an arithmetic number, because the mean of its divisors is an integer number (1177910).

Almost surely, 2^9789663 is an apocalyptic number.

9789663 is a deficient number, since it is larger than the sum of its proper divisors (4345257).

9789663 is a wasteful number, since it uses less digits than its factorization.

9789663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19338 (or 19325 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 9789663 is about 3128.8437161354. The cubic root of 9789663 is about 213.9222284143.

The spelling of 9789663 in words is "nine million, seven hundred eighty-nine thousand, six hundred sixty-three".