27028447 has 2 divisors, whose sum is σ = 27028448. Its totient is φ = 27028446.

The previous prime is 27028423. The next prime is 27028483. The reversal of 27028447 is 74482072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27028447 - 2²³ = 18639839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27028747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13514223 + 13514224.

It is an arithmetic number, because the mean of its divisors is an integer number (13514224).

Almost surely, 2^27028447 is an apocalyptic number.

27028447 is a deficient number, since it is larger than the sum of its proper divisors (1).

27028447 is an equidigital number, since it uses as much as digits as its factorization.

27028447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 27028447 is about 5198.8890159341. The cubic root of 27028447 is about 300.1053222790.

The spelling of 27028447 in words is "twenty-seven million, twenty-eight thousand, four hundred forty-seven".