27220439 has 2 divisors, whose sum is σ = 27220440. Its totient is φ = 27220438.

The previous prime is 27220411. The next prime is 27220441. The reversal of 27220439 is 93402272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27220439 - 2¹⁶ = 27154903 is a prime.

Together with 27220441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27220469) 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, 13610219 + 13610220.

It is an arithmetic number, because the mean of its divisors is an integer number (13610220).

Almost surely, 2^27220439 is an apocalyptic number.

27220439 is a deficient number, since it is larger than the sum of its proper divisors (1).

27220439 is an equidigital number, since it uses as much as digits as its factorization.

27220439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 27220439 is about 5217.3210558677. The cubic root of 27220439 is about 300.8142288461.

The spelling of 27220439 in words is "twenty-seven million, two hundred twenty thousand, four hundred thirty-nine".