11471771 has 2 divisors, whose sum is σ = 11471772. Its totient is φ = 11471770.

The previous prime is 11471749. The next prime is 11471819. The reversal of 11471771 is 17717411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11471771 - 2¹⁴ = 11455387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11471711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5735885 + 5735886.

It is an arithmetic number, because the mean of its divisors is an integer number (5735886).

Almost surely, 2^11471771 is an apocalyptic number.

11471771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11471771 is an equidigital number, since it uses as much as digits as its factorization.

11471771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1372, while the sum is 29.

The square root of 11471771 is about 3387.0002952465. Note that the first 3 decimals coincide. The cubic root of 11471771 is about 225.5330308889.

The spelling of 11471771 in words is "eleven million, four hundred seventy-one thousand, seven hundred seventy-one".