280567 has 8 divisors (see below), whose sum is σ = 324000. Its totient is φ = 237984.

The previous prime is 280561. The next prime is 280583. The reversal of 280567 is 765082.

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 280567 - 2¹⁵ = 247799 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 (280561) 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, 909 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2²⁸⁰⁵⁶⁷ is an apocalyptic number.

280567 is a deficient number, since it is larger than the sum of its proper divisors (43433).

280567 is a wasteful number, since it uses less digits than its factorization.

280567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 280567 is about 529.6857558968. The cubic root of 280567 is about 65.4654558249.

The spelling of 280567 in words is "two hundred eighty thousand, five hundred sixty-seven".