89023 has 4 divisors (see below), whose sum is σ = 97128. Its totient is φ = 80920.

The previous prime is 89021. The next prime is 89041. The reversal of 89023 is 32098.

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 89023 - 2¹ = 89021 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.

89023 is a lucky number.

It is a plaindrome in base 8 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 88985 and 89003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4036 + ... + 4057.

It is an arithmetic number, because the mean of its divisors is an integer number (24282).

2⁸⁹⁰²³ is an apocalyptic number.

89023 is a deficient number, since it is larger than the sum of its proper divisors (8105).

89023 is a wasteful number, since it uses less digits than its factorization.

89023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 89023 is about 298.3672234010. The cubic root of 89023 is about 44.6512966597.

Adding to 89023 its reverse (32098), we get a palindrome (121121).

The spelling of 89023 in words is "eighty-nine thousand, twenty-three".