It is a nialpdrome in base 12.
It is a self number, because there is not a number n which added to its sum of digits gives 1085616.
21085616 is an apocalyptic number.
1085616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1085616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1085616 is a wasteful number, since it uses less digits than its factorization.
1085616 is an evil number, because the sum of its binary digits is even.
The square root of 1085616 is about 1041.9289803053. The cubic root of 1085616 is about 102.7760869348.
The spelling of 1085616 in words is "one million, eighty-five thousand, six hundred sixteen".