10489 has 4 divisors (see below), whose sum is σ = 11124. Its totient is φ = 9856.

The previous prime is 10487. The next prime is 10499. The reversal of 10489 is 98401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98401 = 19 ⋅5179.

It can be written as a sum of positive squares in 2 ways, for example, as 3600 + 6889 = 60^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 10489 - 2¹ = 10487 is a prime.

It is a super-2 number, since 2×10489² = 220038242, which contains 22 as substring.

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 (10487) 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, 292 + ... + 325.

It is an arithmetic number, because the mean of its divisors is an integer number (2781).

2¹⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

10489 is a deficient number, since it is larger than the sum of its proper divisors (635).

10489 is an equidigital number, since it uses as much as digits as its factorization.

10489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10489 is about 102.4158190906. The cubic root of 10489 is about 21.8899462481.

Subtracting from 10489 its product of nonzero digits (288), we obtain a palindrome (10201).

The spelling of 10489 in words is "ten thousand, four hundred eighty-nine".