86503 has 4 divisors (see below), whose sum is σ = 90288. Its totient is φ = 82720.

The previous prime is 86501. The next prime is 86509. The reversal of 86503 is 30568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86503 - 2¹ = 86501 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (22572).

2⁸⁶⁵⁰³ is an apocalyptic number.

86503 is a deficient number, since it is larger than the sum of its proper divisors (3785).

86503 is a wasteful number, since it uses less digits than its factorization.

86503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 86503 is about 294.1139235058. The cubic root of 86503 is about 44.2259383799.

The spelling of 86503 in words is "eighty-six thousand, five hundred three".