28777027 has 2 divisors, whose sum is σ = 28777028. Its totient is φ = 28777026.

The previous prime is 28776997. The next prime is 28777033. The reversal of 28777027 is 72077782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28777027 - 2¹⁵ = 28744259 is a prime.

It is not a weakly prime, because it can be changed into another prime (28777037) 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, 14388513 + 14388514.

It is an arithmetic number, because the mean of its divisors is an integer number (14388514).

Almost surely, 2^28777027 is an apocalyptic number.

28777027 is a deficient number, since it is larger than the sum of its proper divisors (1).

28777027 is an equidigital number, since it uses as much as digits as its factorization.

28777027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 28777027 is about 5364.4223360955. The cubic root of 28777027 is about 306.4422493022.

The spelling of 28777027 in words is "twenty-eight million, seven hundred seventy-seven thousand, twenty-seven".