28047301 has 2 divisors, whose sum is σ = 28047302. Its totient is φ = 28047300.

The previous prime is 28047269. The next prime is 28047307. The reversal of 28047301 is 10374082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 9333025 = 4326^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 28047301 - 2⁵ = 28047269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28047307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14023650 + 14023651.

It is an arithmetic number, because the mean of its divisors is an integer number (14023651).

Almost surely, 2^28047301 is an apocalyptic number.

It is an amenable number.

28047301 is a deficient number, since it is larger than the sum of its proper divisors (1).

28047301 is an equidigital number, since it uses as much as digits as its factorization.

28047301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28047301 is about 5295.9702604905. The cubic root of 28047301 is about 303.8297934847.

The spelling of 28047301 in words is "twenty-eight million, forty-seven thousand, three hundred one".