28228853 has 2 divisors, whose sum is σ = 28228854. Its totient is φ = 28228852.

The previous prime is 28228831. The next prime is 28228859. The reversal of 28228853 is 35882282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28111204 + 117649 = 5302^2 + 343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28228853 is a prime.

It is equal to p_1754777 and since 28228853 and 1754777 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28228859) 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, 14114426 + 14114427.

It is an arithmetic number, because the mean of its divisors is an integer number (14114427).

Almost surely, 2^28228853 is an apocalyptic number.

It is an amenable number.

28228853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28228853 is an equidigital number, since it uses as much as digits as its factorization.

28228853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 38.

The square root of 28228853 is about 5313.0831915188. The cubic root of 28228853 is about 304.4839540259.

The spelling of 28228853 in words is "twenty-eight million, two hundred twenty-eight thousand, eight hundred fifty-three".