28318027 has 2 divisors, whose sum is σ = 28318028. Its totient is φ = 28318026.

The previous prime is 28318021. The next prime is 28318051. The reversal of 28318027 is 72081382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28318027 - 2¹¹ = 28315979 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28318027.

It is not a weakly prime, because it can be changed into another prime (28318021) 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, 14159013 + 14159014.

It is an arithmetic number, because the mean of its divisors is an integer number (14159014).

Almost surely, 2^28318027 is an apocalyptic number.

28318027 is a deficient number, since it is larger than the sum of its proper divisors (1).

28318027 is an equidigital number, since it uses as much as digits as its factorization.

28318027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 28318027 is about 5321.4685003296. The cubic root of 28318027 is about 304.8042352098.

The spelling of 28318027 in words is "twenty-eight million, three hundred eighteen thousand, twenty-seven".