9996816 has 40 divisors (see below), whose sum is σ = 27346464. Its totient is φ = 3136000.

The previous prime is 9996809. The next prime is 9996817. The reversal of 9996816 is 6186999.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (9996817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5310 + ... + 6941.

Almost surely, 2^9996816 is an apocalyptic number.

It is an amenable number.

9996816 is an abundant number, since it is smaller than the sum of its proper divisors (17349648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9996816 is a wasteful number, since it uses less digits than its factorization.

9996816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279 (or 12273 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 9996816 is about 3161.7741854851. The cubic root of 9996816 is about 215.4206008424.

It can be divided in two parts, 9996 and 816, that multiplied together give a square (8156736 = 2856²).

The spelling of 9996816 in words is "nine million, nine hundred ninety-six thousand, eight hundred sixteen".