86623 has 6 divisors (see below), whose sum is σ = 90584. Its totient is φ = 82824.

The previous prime is 86599. The next prime is 86627. The reversal of 86623 is 32668.

It is not a de Polignac number, because 86623 - 2⁹ = 86111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 790 + ... + 892.

2⁸⁶⁶²³ is an apocalyptic number.

86623 is a deficient number, since it is larger than the sum of its proper divisors (3961).

86623 is a wasteful number, since it uses less digits than its factorization.

86623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 132 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 86623 is about 294.3178553877. The cubic root of 86623 is about 44.2463795223.

The spelling of 86623 in words is "eighty-six thousand, six hundred twenty-three".