27042091 has 2 divisors, whose sum is σ = 27042092. Its totient is φ = 27042090.

The previous prime is 27042077. The next prime is 27042097. The reversal of 27042091 is 19024072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27042091 - 2¹³ = 27033899 is a prime.

It is not a weakly prime, because it can be changed into another prime (27042097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13521045 + 13521046.

It is an arithmetic number, because the mean of its divisors is an integer number (13521046).

Almost surely, 2^27042091 is an apocalyptic number.

27042091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27042091 is an equidigital number, since it uses as much as digits as its factorization.

27042091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 27042091 is about 5200.2010538055. The cubic root of 27042091 is about 300.1558116543.

The spelling of 27042091 in words is "twenty-seven million, forty-two thousand, ninety-one".