27442927 has 2 divisors, whose sum is σ = 27442928. Its totient is φ = 27442926.

The previous prime is 27442907. The next prime is 27442931. The reversal of 27442927 is 72924472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27442927 - 2⁷ = 27442799 is a prime.

It is a super-2 number, since 2×27442927² = 1506228484654658, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27442907) 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, 13721463 + 13721464.

It is an arithmetic number, because the mean of its divisors is an integer number (13721464).

Almost surely, 2^27442927 is an apocalyptic number.

27442927 is a deficient number, since it is larger than the sum of its proper divisors (1).

27442927 is an equidigital number, since it uses as much as digits as its factorization.

27442927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 27442927 is about 5238.5997174818. The cubic root of 27442927 is about 301.6315807646.

It can be divided in two parts, 2744 and 2927, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 27442927 in words is "twenty-seven million, four hundred forty-two thousand, nine hundred twenty-seven".