11847271 has 2 divisors, whose sum is σ = 11847272. Its totient is φ = 11847270.

The previous prime is 11847263. The next prime is 11847281. The reversal of 11847271 is 17274811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11847271 - 2³ = 11847263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11847281) 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, 5923635 + 5923636.

It is an arithmetic number, because the mean of its divisors is an integer number (5923636).

Almost surely, 2^11847271 is an apocalyptic number.

11847271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11847271 is an equidigital number, since it uses as much as digits as its factorization.

11847271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 31.

The square root of 11847271 is about 3441.9864903860. The cubic root of 11847271 is about 227.9674148056.

The spelling of 11847271 in words is "eleven million, eight hundred forty-seven thousand, two hundred seventy-one".