280676 has 12 divisors (see below), whose sum is σ = 535920. Its totient is φ = 127560.

The previous prime is 280673. The next prime is 280681. The reversal of 280676 is 676082.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280676.

It is not an unprimeable number, because it can be changed into a prime (280673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146 + ... + 3233.

It is an arithmetic number, because the mean of its divisors is an integer number (44660).

2²⁸⁰⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

280676 is a deficient number, since it is larger than the sum of its proper divisors (255244).

280676 is a wasteful number, since it uses less digits than its factorization.

280676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394 (or 6392 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 280676 is about 529.7886370997. The cubic root of 280676 is about 65.4739324820.

It can be divided in two parts, 2806 and 76, that added together give a palindrome (2882).

The spelling of 280676 in words is "two hundred eighty thousand, six hundred seventy-six".