27414991 has 2 divisors, whose sum is σ = 27414992. Its totient is φ = 27414990.

The previous prime is 27414971. The next prime is 27415051. The reversal of 27414991 is 19941472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27414991 - 2⁹ = 27414479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27414991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27414901) 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, 13707495 + 13707496.

It is an arithmetic number, because the mean of its divisors is an integer number (13707496).

Almost surely, 2^27414991 is an apocalyptic number.

27414991 is a deficient number, since it is larger than the sum of its proper divisors (1).

27414991 is an equidigital number, since it uses as much as digits as its factorization.

27414991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 27414991 is about 5235.9326771837. The cubic root of 27414991 is about 301.5291956616.

The spelling of 27414991 in words is "twenty-seven million, four hundred fourteen thousand, nine hundred ninety-one".