27091943 has 2 divisors, whose sum is σ = 27091944. Its totient is φ = 27091942.

The previous prime is 27091927. The next prime is 27091949. The reversal of 27091943 is 34919072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27091943 - 2⁴ = 27091927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27091949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13545971 + 13545972.

It is an arithmetic number, because the mean of its divisors is an integer number (13545972).

Almost surely, 2^27091943 is an apocalyptic number.

27091943 is a deficient number, since it is larger than the sum of its proper divisors (1).

27091943 is an equidigital number, since it uses as much as digits as its factorization.

27091943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 27091943 is about 5204.9921229527. The cubic root of 27091943 is about 300.3401438245.

The spelling of 27091943 in words is "twenty-seven million, ninety-one thousand, nine hundred forty-three".