It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 287979.
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 287979.
It is a Zeisel number, with parameters (28, -25).
2287979 is an apocalyptic number.
287979 is a wasteful number, since it uses less digits than its factorization.
287979 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1689.
The square root of 287979 is about 536.6367486485. The cubic root of 287979 is about 66.0369398354.
The spelling of 287979 in words is "two hundred eighty-seven thousand, nine hundred seventy-nine".