11966897 has 2 divisors, whose sum is σ = 11966898. Its totient is φ = 11966896.

The previous prime is 11966893. The next prime is 11966909. The reversal of 11966897 is 79866911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11806096 + 160801 = 3436^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 11966897 - 2² = 11966893 is a prime.

It is not a weakly prime, because it can be changed into another prime (11966893) 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, 5983448 + 5983449.

It is an arithmetic number, because the mean of its divisors is an integer number (5983449).

Almost surely, 2^11966897 is an apocalyptic number.

It is an amenable number.

11966897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11966897 is an equidigital number, since it uses as much as digits as its factorization.

11966897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 11966897 is about 3459.3203089624. The cubic root of 11966897 is about 228.7321353264.

The spelling of 11966897 in words is "eleven million, nine hundred sixty-six thousand, eight hundred ninety-seven".