27042419 has 2 divisors, whose sum is σ = 27042420. Its totient is φ = 27042418.

The previous prime is 27042403. The next prime is 27042467. The reversal of 27042419 is 91424072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27042419 - 2⁴ = 27042403 is a prime.

It is a super-2 number, since 2×27042419² = 1462584850743122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27042391 and 27042400.

It is not a weakly prime, because it can be changed into another prime (27042469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13521209 + 13521210.

It is an arithmetic number, because the mean of its divisors is an integer number (13521210).

Almost surely, 2^27042419 is an apocalyptic number.

27042419 is a deficient number, since it is larger than the sum of its proper divisors (1).

27042419 is an equidigital number, since it uses as much as digits as its factorization.

27042419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 27042419 is about 5200.2325909521. The cubic root of 27042419 is about 300.1570252034.

The spelling of 27042419 in words is "twenty-seven million, forty-two thousand, four hundred nineteen".