28508027 has 2 divisors, whose sum is σ = 28508028. Its totient is φ = 28508026.

The previous prime is 28507987. The next prime is 28508041. The reversal of 28508027 is 72080582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28508027 - 2²⁴ = 11730811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28507984 and 28508002.

It is not a weakly prime, because it can be changed into another prime (28508057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14254013 + 14254014.

It is an arithmetic number, because the mean of its divisors is an integer number (14254014).

Almost surely, 2^28508027 is an apocalyptic number.

28508027 is a deficient number, since it is larger than the sum of its proper divisors (1).

28508027 is an equidigital number, since it uses as much as digits as its factorization.

28508027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 28508027 is about 5339.2908705183. The cubic root of 28508027 is about 305.4844116361.

The spelling of 28508027 in words is "twenty-eight million, five hundred eight thousand, twenty-seven".