Almost surely, 28905728 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 8905728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12838784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8905728 is a wasteful number, since it uses less digits than its factorization.
8905728 is an evil number, because the sum of its binary digits is even.
The square root of 8905728 is about 2984.2466386008. The cubic root of 8905728 is about 207.2795588000.
The spelling of 8905728 in words is "eight million, nine hundred five thousand, seven hundred twenty-eight".