289859 has 2 divisors, whose sum is σ = 289860. Its totient is φ = 289858.

The previous prime is 289853. The next prime is 289871. The reversal of 289859 is 958982.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289859 - 2⁴ = 289843 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289859.

It is not a weakly prime, because it can be changed into another prime (289853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144929 + 144930.

It is an arithmetic number, because the mean of its divisors is an integer number (144930).

2²⁸⁹⁸⁵⁹ is an apocalyptic number.

289859 is a deficient number, since it is larger than the sum of its proper divisors (1).

289859 is an equidigital number, since it uses as much as digits as its factorization.

289859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 289859 is about 538.3855495832. The cubic root of 289859 is about 66.1803302247.

The spelling of 289859 in words is "two hundred eighty-nine thousand, eight hundred fifty-nine".