28668053 has 2 divisors, whose sum is σ = 28668054. Its totient is φ = 28668052.

The previous prime is 28668023. The next prime is 28668077. The reversal of 28668053 is 35086682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18472804 + 10195249 = 4298^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 28668053 - 2¹⁴ = 28651669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28667998 and 28668016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28668023) 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, 14334026 + 14334027.

It is an arithmetic number, because the mean of its divisors is an integer number (14334027).

Almost surely, 2^28668053 is an apocalyptic number.

It is an amenable number.

28668053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28668053 is an equidigital number, since it uses as much as digits as its factorization.

28668053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 28668053 is about 5354.2555971862. The cubic root of 28668053 is about 306.0549440690.

The spelling of 28668053 in words is "twenty-eight million, six hundred sixty-eight thousand, fifty-three".