280959 has 16 divisors (see below), whose sum is σ = 453888. Its totient is φ = 150912.

The previous prime is 280957. The next prime is 280963. The reversal of 280959 is 959082.

It is not a de Polignac number, because 280959 - 2¹ = 280957 is a prime.

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 280959.

It is not an unprimeable number, because it can be changed into a prime (280957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (28368).

2²⁸⁰⁹⁵⁹ is an apocalyptic number.

280959 is a deficient number, since it is larger than the sum of its proper divisors (172929).

280959 is a wasteful number, since it uses less digits than its factorization.

280959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 280959 is about 530.0556574550. The cubic root of 280959 is about 65.4959304427.

The spelling of 280959 in words is "two hundred eighty thousand, nine hundred fifty-nine".