28200241 has 2 divisors, whose sum is σ = 28200242. Its totient is φ = 28200240.

The previous prime is 28200203. The next prime is 28200281. The reversal of 28200241 is 14200282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28037025 + 163216 = 5295^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 28200241 - 2⁷ = 28200113 is a prime.

It is not a weakly prime, because it can be changed into another prime (28200281) 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, 14100120 + 14100121.

It is an arithmetic number, because the mean of its divisors is an integer number (14100121).

Almost surely, 2^28200241 is an apocalyptic number.

It is an amenable number.

28200241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28200241 is an equidigital number, since it uses as much as digits as its factorization.

28200241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 28200241 is about 5310.3899103550. The cubic root of 28200241 is about 304.3810470235.

It can be divided in two parts, 28200 and 241, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 28200241 in words is "twenty-eight million, two hundred thousand, two hundred forty-one".