It is a happy number.
It is a nude number because it is divisible by every one of its digits.
It is an unprimeable number.
Almost surely, 299963648 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 99963648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147607460).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99963648 is a wasteful number, since it uses less digits than its factorization.
99963648 is an evil number, because the sum of its binary digits is even.
The square root of 99963648 is about 9998.1822347865. The cubic root of 99963648 is about 464.1026328656.
The spelling of 99963648 in words is "ninety-nine million, nine hundred sixty-three thousand, six hundred forty-eight".