27622139 has 2 divisors, whose sum is σ = 27622140. Its totient is φ = 27622138.

The previous prime is 27622121. The next prime is 27622141. The reversal of 27622139 is 93122672.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27622139 - 2⁸ = 27621883 is a prime.

Together with 27622141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27622159) 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, 13811069 + 13811070.

It is an arithmetic number, because the mean of its divisors is an integer number (13811070).

Almost surely, 2^27622139 is an apocalyptic number.

27622139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27622139 is an equidigital number, since it uses as much as digits as its factorization.

27622139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 27622139 is about 5255.6768355750. The cubic root of 27622139 is about 302.2867435763.

The spelling of 27622139 in words is "twenty-seven million, six hundred twenty-two thousand, one hundred thirty-nine".