98765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-98765 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a straight-line number, since its digits are in arithmetic progression.
It is a nialpdrome in base 10.
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 98765.
It is an unprimeable number.
298765 is an apocalyptic number.
It is an amenable number.
98765 is a wasteful number, since it uses less digits than its factorization.
98765 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19758.
The square root of 98765 is about 314.2689930617. The cubic root of 98765 is about 46.2240175465.
The spelling of 98765 in words is "ninety-eight thousand, seven hundred sixty-five".