11968771 has 2 divisors, whose sum is σ = 11968772. Its totient is φ = 11968770.

The previous prime is 11968769. The next prime is 11968777. The reversal of 11968771 is 17786911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11968771 - 2¹ = 11968769 is a prime.

Together with 11968769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11968777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984385 + 5984386.

It is an arithmetic number, because the mean of its divisors is an integer number (5984386).

Almost surely, 2^11968771 is an apocalyptic number.

11968771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11968771 is an equidigital number, since it uses as much as digits as its factorization.

11968771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 40.

The square root of 11968771 is about 3459.5911608165. The cubic root of 11968771 is about 228.7440744183.

The spelling of 11968771 in words is "eleven million, nine hundred sixty-eight thousand, seven hundred seventy-one".