9646663 has 8 divisors (see below), whose sum is σ = 10630928. Its totient is φ = 8697024.

The previous prime is 9646649. The next prime is 9646691. The reversal of 9646663 is 3666469.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9646663 - 2⁵ = 9646631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9646613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (1328866).

Almost surely, 2^9646663 is an apocalyptic number.

9646663 is a deficient number, since it is larger than the sum of its proper divisors (984265).

9646663 is a wasteful number, since it uses less digits than its factorization.

9646663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17313.

The product of its digits is 139968, while the sum is 40.

The square root of 9646663 is about 3105.9077578061. The cubic root of 9646663 is about 212.8755104361.

The spelling of 9646663 in words is "nine million, six hundred forty-six thousand, six hundred sixty-three".