9946663 has 4 divisors (see below), whose sum is σ = 9953008. Its totient is φ = 9940320.

The previous prime is 9946661. The next prime is 9946733. The reversal of 9946663 is 3666499.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9946663 - 2¹ = 9946661 is a prime.

It is a super-2 number, since 2×9946663² = 197872209671138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9946661) 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 3 ways as a sum of consecutive naturals, for example, 1078 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (2488252).

Almost surely, 2^9946663 is an apocalyptic number.

9946663 is a deficient number, since it is larger than the sum of its proper divisors (6345).

9946663 is a wasteful number, since it uses less digits than its factorization.

9946663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344.

The product of its digits is 209952, while the sum is 43.

The square root of 9946663 is about 3153.8330647008. The cubic root of 9946663 is about 215.0597490331.

It can be divided in two parts, 9946 and 663, that added together give a square (10609 = 103²).

The spelling of 9946663 in words is "nine million, nine hundred forty-six thousand, six hundred sixty-three".