27400271 has 2 divisors, whose sum is σ = 27400272. Its totient is φ = 27400270.

The previous prime is 27400267. The next prime is 27400279. The reversal of 27400271 is 17200472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27400271 - 2² = 27400267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27400279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13700135 + 13700136.

It is an arithmetic number, because the mean of its divisors is an integer number (13700136).

Almost surely, 2^27400271 is an apocalyptic number.

27400271 is a deficient number, since it is larger than the sum of its proper divisors (1).

27400271 is an equidigital number, since it uses as much as digits as its factorization.

27400271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 27400271 is about 5234.5268172013. The cubic root of 27400271 is about 301.4752190570.

The spelling of 27400271 in words is "twenty-seven million, four hundred thousand, two hundred seventy-one".