28001713 has 2 divisors, whose sum is σ = 28001714. Its totient is φ = 28001712.

The previous prime is 28001693. The next prime is 28001731. The reversal of 28001713 is 31710082.

Together with next prime (28001731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17164449 + 10837264 = 4143^2 + 3292^2 .

It is a cyclic number.

It is not a de Polignac number, because 28001713 - 2⁹ = 28001201 is a prime.

It is not a weakly prime, because it can be changed into another prime (28005713) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14000856 + 14000857.

It is an arithmetic number, because the mean of its divisors is an integer number (14000857).

Almost surely, 2^28001713 is an apocalyptic number.

It is an amenable number.

28001713 is a deficient number, since it is larger than the sum of its proper divisors (1).

28001713 is an equidigital number, since it uses as much as digits as its factorization.

28001713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 28001713 is about 5291.6644829392. The cubic root of 28001713 is about 303.6650895338.

Adding to 28001713 its reverse (31710082), we get a palindrome (59711795).

The spelling of 28001713 in words is "twenty-eight million, one thousand, seven hundred thirteen".