289291 has 2 divisors, whose sum is σ = 289292. Its totient is φ = 289290.

The previous prime is 289283. The next prime is 289297. The reversal of 289291 is 192982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289291 - 2³ = 289283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144645 + 144646.

It is an arithmetic number, because the mean of its divisors is an integer number (144646).

2²⁸⁹²⁹¹ is an apocalyptic number.

289291 is a deficient number, since it is larger than the sum of its proper divisors (1).

289291 is an equidigital number, since it uses as much as digits as its factorization.

289291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 289291 is about 537.8577878956. The cubic root of 289291 is about 66.1370735515.

The spelling of 289291 in words is "two hundred eighty-nine thousand, two hundred ninety-one".