289319 has 2 divisors, whose sum is σ = 289320. Its totient is φ = 289318.

The previous prime is 289309. The next prime is 289343. The reversal of 289319 is 913982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289319 - 2⁸ = 289063 is a prime.

It is a super-2 number, since 2×289319² = 167410967522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144659 + 144660.

It is an arithmetic number, because the mean of its divisors is an integer number (144660).

2²⁸⁹³¹⁹ is an apocalyptic number.

289319 is a deficient number, since it is larger than the sum of its proper divisors (1).

289319 is an equidigital number, since it uses as much as digits as its factorization.

289319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 289319 is about 537.8838164511. The cubic root of 289319 is about 66.1392072489.

The spelling of 289319 in words is "two hundred eighty-nine thousand, three hundred nineteen".