It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is a nude number because it is divisible by every one of its digits.
It is an unprimeable number.
Almost surely, 29999648 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9999648 is a wasteful number, since it uses less digits than its factorization.
9999648 is an evil number, because the sum of its binary digits is even.
The square root of 9999648 is about 3162.2220035918. Note that the first 3 decimals coincide. The cubic root of 9999648 is about 215.4409411035.
The spelling of 9999648 in words is "nine million, nine hundred ninety-nine thousand, six hundred forty-eight".