11065889 has 2 divisors, whose sum is σ = 11065890. Its totient is φ = 11065888.

The previous prime is 11065877. The next prime is 11065897. The reversal of 11065889 is 98856011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 4264225 = 2608^2 + 2065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11065889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11065819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5532944 + 5532945.

It is an arithmetic number, because the mean of its divisors is an integer number (5532945).

Almost surely, 2^11065889 is an apocalyptic number.

It is an amenable number.

11065889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11065889 is an equidigital number, since it uses as much as digits as its factorization.

11065889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 11065889 is about 3326.5431005775. The cubic root of 11065889 is about 222.8411733454.

The spelling of 11065889 in words is "eleven million, sixty-five thousand, eight hundred eighty-nine".