280795 has 8 divisors (see below), whose sum is σ = 341280. Its totient is φ = 221760.

The previous prime is 280771. The next prime is 280811. The reversal of 280795 is 597082.

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

It is not a de Polignac number, because 280795 - 2¹³ = 272603 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (42660).

2²⁸⁰⁷⁹⁵ is an apocalyptic number.

280795 is a deficient number, since it is larger than the sum of its proper divisors (60485).

280795 is an equidigital number, since it uses as much as digits as its factorization.

280795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 280795 is about 529.9009341377. The cubic root of 280795 is about 65.4831843087.

The spelling of 280795 in words is "two hundred eighty thousand, seven hundred ninety-five".