28444301 has 2 divisors, whose sum is σ = 28444302. Its totient is φ = 28444300.

The previous prime is 28444289. The next prime is 28444303. The reversal of 28444301 is 10344482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26512201 + 1932100 = 5149^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 28444301 - 2¹⁰ = 28443277 is a prime.

Together with 28444303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28444303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14222150 + 14222151.

It is an arithmetic number, because the mean of its divisors is an integer number (14222151).

Almost surely, 2^28444301 is an apocalyptic number.

It is an amenable number.

28444301 is a deficient number, since it is larger than the sum of its proper divisors (1).

28444301 is an equidigital number, since it uses as much as digits as its factorization.

28444301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 28444301 is about 5333.3198853997. The cubic root of 28444301 is about 305.2566182126.

Adding to 28444301 its reverse (10344482), we get a palindrome (38788783).

The spelling of 28444301 in words is "twenty-eight million, four hundred forty-four thousand, three hundred one".