280337 has 2 divisors, whose sum is σ = 280338. Its totient is φ = 280336.

The previous prime is 280327. The next prime is 280339. The reversal of 280337 is 733082.

280337 is nontrivially palindromic in base 2.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192721 + 87616 = 439^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 280337 - 2⁴ = 280321 is a prime.

Together with 280339, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280337.

It is not a weakly prime, because it can be changed into another prime (280339) 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 as a sum of consecutive naturals, namely, 140168 + 140169.

It is an arithmetic number, because the mean of its divisors is an integer number (140169).

2²⁸⁰³³⁷ is an apocalyptic number.

It is an amenable number.

280337 is a deficient number, since it is larger than the sum of its proper divisors (1).

280337 is an equidigital number, since it uses as much as digits as its factorization.

280337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 280337 is about 529.4686015242. The cubic root of 280337 is about 65.4475620940.

The spelling of 280337 in words is "two hundred eighty thousand, three hundred thirty-seven".