289369 has 2 divisors, whose sum is σ = 289370. Its totient is φ = 289368.

The previous prime is 289361. The next prime is 289381. The reversal of 289369 is 963982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 27225 = 512^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 289369 - 2³ = 289361 is a prime.

It is a super-2 number, since 2×289369² = 167468836322, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (289361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144684 + 144685.

It is an arithmetic number, because the mean of its divisors is an integer number (144685).

2²⁸⁹³⁶⁹ is an apocalyptic number.

It is an amenable number.

289369 is a deficient number, since it is larger than the sum of its proper divisors (1).

289369 is an equidigital number, since it uses as much as digits as its factorization.

289369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 289369 is about 537.9302928819. The cubic root of 289369 is about 66.1430170803.

The spelling of 289369 in words is "two hundred eighty-nine thousand, three hundred sixty-nine".