280827 has 10 divisors (see below), whose sum is σ = 419628. Its totient is φ = 187164.

The previous prime is 280817. The next prime is 280837. The reversal of 280827 is 728082.

It is an interprime number because it is at equal distance from previous prime (280817) and next prime (280837).

It is not a de Polignac number, because 280827 - 2⁴ = 280811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 280827.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280827.

It is not an unprimeable number, because it can be changed into a prime (280817) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1653 + ... + 1814.

2²⁸⁰⁸²⁷ is an apocalyptic number.

280827 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

280827 is a deficient number, since it is larger than the sum of its proper divisors (138801).

280827 is an equidigital number, since it uses as much as digits as its factorization.

280827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 280827 is about 529.9311276006. The cubic root of 280827 is about 65.4856717489.

280827 divided by its sum of digits (27) gives a palindrome (10401).

The spelling of 280827 in words is "two hundred eighty thousand, eight hundred twenty-seven".