9996663 has 16 divisors (see below), whose sum is σ = 14570496. Its totient is φ = 6069120.

The previous prime is 9996659. The next prime is 9996667. The reversal of 9996663 is 3666999.

9996663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9996659) and next prime (9996667).

It is not a de Polignac number, because 9996663 - 2² = 9996659 is a prime.

It is a super-2 number, since 2×9996663² = 199866542271138, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581 + ... + 4742.

It is an arithmetic number, because the mean of its divisors is an integer number (910656).

Almost surely, 2^9996663 is an apocalyptic number.

9996663 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

9996663 is a deficient number, since it is larger than the sum of its proper divisors (4573833).

9996663 is a wasteful number, since it uses less digits than its factorization.

9996663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374.

The product of its digits is 472392, while the sum is 48.

The square root of 9996663 is about 3161.7499901162. The cubic root of 9996663 is about 215.4195018418.

The spelling of 9996663 in words is "nine million, nine hundred ninety-six thousand, six hundred sixty-three".