87381 is nontrivially palindromic in base 2 and base 4.
87381 is an esthetic number in base 2, because in such base its adjacent digits differ by 1.
It is the 18-th Jacobsthal number.
It is an Ulam number.
It is a Duffinian number.
87381 is an undulating number in base 2 and base 8.
It is a Curzon number.
87381 is a nontrivial repdigit in base 4.
It is a plaindrome in base 4 and base 16.
It is a nialpdrome in base 4.
It is a zygodrome in base 4.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87381.
87381 is a Friedman number, since it can be written as (8^7/8-1)/3, using all its digits and the basic arithmetic operations.
287381 is an apocalyptic number.
87381 is the 171-st octagonal number.
It is an amenable number.
87381 is a wasteful number, since it uses less digits than its factorization.
87381 is an odious number, because the sum of its binary digits is odd.
The square root of 87381 is about 295.6027740059. The cubic root of 87381 is about 44.3750651325.
The spelling of 87381 in words is "eighty-seven thousand, three hundred eighty-one".