11785271 has 2 divisors, whose sum is σ = 11785272. Its totient is φ = 11785270.

The previous prime is 11785259. The next prime is 11785303. The reversal of 11785271 is 17258711.

It is an a-pointer prime, because the next prime (11785303) can be obtained adding 11785271 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (17258711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11785271 - 2²² = 7590967 is a prime.

It is a super-4 number, since 4×11785271⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11785201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5892635 + 5892636.

It is an arithmetic number, because the mean of its divisors is an integer number (5892636).

Almost surely, 2^11785271 is an apocalyptic number.

11785271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11785271 is an equidigital number, since it uses as much as digits as its factorization.

11785271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920, while the sum is 32.

The square root of 11785271 is about 3432.9682491978. The cubic root of 11785271 is about 227.5690471897.

The spelling of 11785271 in words is "eleven million, seven hundred eighty-five thousand, two hundred seventy-one".