27917119 has 2 divisors, whose sum is σ = 27917120. Its totient is φ = 27917118.

The previous prime is 27917117. The next prime is 27917231. The reversal of 27917119 is 91171972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27917119 - 2¹ = 27917117 is a prime.

It is a super-2 number, since 2×27917119² = 1558731066520322, which contains 22 as substring.

Together with 27917117, 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 (27917117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13958559 + 13958560.

It is an arithmetic number, because the mean of its divisors is an integer number (13958560).

Almost surely, 2^27917119 is an apocalyptic number.

27917119 is a deficient number, since it is larger than the sum of its proper divisors (1).

27917119 is an equidigital number, since it uses as much as digits as its factorization.

27917119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 37.

The square root of 27917119 is about 5283.6652997706. The cubic root of 27917119 is about 303.3589873511.

The spelling of 27917119 in words is "twenty-seven million, nine hundred seventeen thousand, one hundred nineteen".