289489 has 2 divisors, whose sum is σ = 289490. Its totient is φ = 289488.

The previous prime is 289477. The next prime is 289511. The reversal of 289489 is 984982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173889 + 115600 = 417^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 289489 - 2⁷ = 289361 is a prime.

It is a super-2 number, since 2×289489² = 167607762242, which contains 22 as substring.

It is a Chen prime.

289489 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (289439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144744 + 144745.

It is an arithmetic number, because the mean of its divisors is an integer number (144745).

2²⁸⁹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

289489 is a deficient number, since it is larger than the sum of its proper divisors (1).

289489 is an equidigital number, since it uses as much as digits as its factorization.

289489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 289489 is about 538.0418199360. The cubic root of 289489 is about 66.1521588856.

The spelling of 289489 in words is "two hundred eighty-nine thousand, four hundred eighty-nine".