28067093 has 2 divisors, whose sum is σ = 28067094. Its totient is φ = 28067092.

The previous prime is 28067087. The next prime is 28067111. The reversal of 28067093 is 39076082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25170289 + 2896804 = 5017^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 28067093 - 2⁴ = 28067077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28067393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14033546 + 14033547.

It is an arithmetic number, because the mean of its divisors is an integer number (14033547).

Almost surely, 2^28067093 is an apocalyptic number.

It is an amenable number.

28067093 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067093 is an equidigital number, since it uses as much as digits as its factorization.

28067093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28067093 is about 5297.8385215104. The cubic root of 28067093 is about 303.9012440359.

The spelling of 28067093 in words is "twenty-eight million, sixty-seven thousand, ninety-three".