280971 has 6 divisors (see below), whose sum is σ = 405860. Its totient is φ = 187308.

The previous prime is 280967. The next prime is 280979. The reversal of 280971 is 179082.

It is not a de Polignac number, because 280971 - 2² = 280967 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280971.

It is not an unprimeable number, because it can be changed into a prime (280979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15601 + ... + 15618.

2²⁸⁰⁹⁷¹ is an apocalyptic number.

280971 is a deficient number, since it is larger than the sum of its proper divisors (124889).

280971 is a wasteful number, since it uses less digits than its factorization.

280971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31225 (or 31222 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 280971 is about 530.0669769001. The cubic root of 280971 is about 65.4968628919.

The spelling of 280971 in words is "two hundred eighty thousand, nine hundred seventy-one".