It is a happy number.
It is an unprimeable number.
Almost surely, 299742608 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 99742608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162605664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99742608 is a wasteful number, since it uses less digits than its factorization.
99742608 is an odious number, because the sum of its binary digits is odd.
The square root of 99742608 is about 9987.1221079949. The cubic root of 99742608 is about 463.7603052517.
The spelling of 99742608 in words is "ninety-nine million, seven hundred forty-two thousand, six hundred eight".