289013 has 4 divisors (see below), whose sum is σ = 298368. Its totient is φ = 279660.

The previous prime is 289001. The next prime is 289019. The reversal of 289013 is 310982.

289013 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289013 - 2⁴ = 288997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289019) 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, 4631 + ... + 4692.

It is an arithmetic number, because the mean of its divisors is an integer number (74592).

2²⁸⁹⁰¹³ is an apocalyptic number.

It is an amenable number.

289013 is a deficient number, since it is larger than the sum of its proper divisors (9355).

289013 is an equidigital number, since it uses as much as digits as its factorization.

289013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 289013 is about 537.5992931543. The cubic root of 289013 is about 66.1158815118.

Adding to 289013 its reverse (310982), we get a palindrome (599995).

The spelling of 289013 in words is "two hundred eighty-nine thousand, thirteen".