27221087 has 2 divisors, whose sum is σ = 27221088. Its totient is φ = 27221086.

The previous prime is 27221059. The next prime is 27221113. The reversal of 27221087 is 78012272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27221087 - 2⁶ = 27221023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27221017) 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, 13610543 + 13610544.

It is an arithmetic number, because the mean of its divisors is an integer number (13610544).

Almost surely, 2^27221087 is an apocalyptic number.

27221087 is a deficient number, since it is larger than the sum of its proper divisors (1).

27221087 is an equidigital number, since it uses as much as digits as its factorization.

27221087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 27221087 is about 5217.3831563342. The cubic root of 27221087 is about 300.8166158523.

The spelling of 27221087 in words is "twenty-seven million, two hundred twenty-one thousand, eighty-seven".