It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-289391 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289391.
2289391 is an apocalyptic number.
289391 is a wasteful number, since it uses less digits than its factorization.
289391 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 633.
The square root of 289391 is about 537.9507412394. The cubic root of 289391 is about 66.1446932671.
The spelling of 289391 in words is "two hundred eighty-nine thousand, three hundred ninety-one".