280696 has 16 divisors (see below), whose sum is σ = 567000. Its totient is φ = 129504.

The previous prime is 280681. The next prime is 280697. The reversal of 280696 is 696082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246 + ... + 1453.

2²⁸⁰⁶⁹⁶ is an apocalyptic number.

280696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

280696 is an abundant number, since it is smaller than the sum of its proper divisors (286304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280696 is a wasteful number, since it uses less digits than its factorization.

280696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 280696 is about 529.8075122155. The cubic root of 280696 is about 65.4754875937.

The spelling of 280696 in words is "two hundred eighty thousand, six hundred ninety-six".