287959 has 8 divisors (see below), whose sum is σ = 339968. Its totient is φ = 238680.

The previous prime is 287939. The next prime is 287977. The reversal of 287959 is 959782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 287959 - 2¹³ = 279767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (42496).

2²⁸⁷⁹⁵⁹ is an apocalyptic number.

287959 is a deficient number, since it is larger than the sum of its proper divisors (52009).

287959 is a wasteful number, since it uses less digits than its factorization.

287959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365.

The product of its digits is 45360, while the sum is 40.

The square root of 287959 is about 536.6181137457. The cubic root of 287959 is about 66.0354110556.

The spelling of 287959 in words is "two hundred eighty-seven thousand, nine hundred fifty-nine".