It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
Almost surely, 299991332 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 99991332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144912768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99991332 is a wasteful number, since it uses less digits than its factorization.
99991332 is an odious number, because the sum of its binary digits is odd.
The square root of 99991332 is about 9999.5665906078. The cubic root of 99991332 is about 464.1454718764.
The spelling of 99991332 in words is "ninety-nine million, nine hundred ninety-one thousand, three hundred thirty-two".