280422017 has 2 divisors, whose sum is σ = 280422018. Its totient is φ = 280422016.

The previous prime is 280421971. The next prime is 280422019. The reversal of 280422017 is 710224082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276091456 + 4330561 = 16616^2 + 2081^2 .

It is a cyclic number.

It is not a de Polignac number, because 280422017 - 2⁸ = 280421761 is a prime.

Together with 280422019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (280422019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140211008 + 140211009.

It is an arithmetic number, because the mean of its divisors is an integer number (140211009).

Almost surely, 2^280422017 is an apocalyptic number.

It is an amenable number.

280422017 is a deficient number, since it is larger than the sum of its proper divisors (1).

280422017 is an equidigital number, since it uses as much as digits as its factorization.

280422017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 280422017 is about 16745.8059525363. The cubic root of 280422017 is about 654.5417745695.

Adding to 280422017 its reverse (710224082), we get a palindrome (990646099).

The spelling of 280422017 in words is "two hundred eighty million, four hundred twenty-two thousand, seventeen".