28244033 has 2 divisors, whose sum is σ = 28244034. Its totient is φ = 28244032.

The previous prime is 28244017. The next prime is 28244053. The reversal of 28244033 is 33044282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 69169 = 5308^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 28244033 - 2⁴ = 28244017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28243993 and 28244011.

It is not a weakly prime, because it can be changed into another prime (28244053) 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, 14122016 + 14122017.

It is an arithmetic number, because the mean of its divisors is an integer number (14122017).

Almost surely, 2^28244033 is an apocalyptic number.

It is an amenable number.

28244033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28244033 is an equidigital number, since it uses as much as digits as its factorization.

28244033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 28244033 is about 5314.5115485809. The cubic root of 28244033 is about 304.5385227582.

The spelling of 28244033 in words is "twenty-eight million, two hundred forty-four thousand, thirty-three".