It is a tau number, because it is divible by the number of its divisors (40).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=200.
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a nialpdrome in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 80000.
It is an unprimeable number.
280000 is an apocalyptic number.
80000 is a gapful number since it is divisible by the number (80) 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 80000
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80000 is an frugal number, since it uses more digits than its factorization.
80000 is an odious number, because the sum of its binary digits is odd.
The square root of 80000 is about 282.8427124746. The cubic root of 80000 is about 43.0886938006.
The spelling of 80000 in words is "eighty thousand".