11665937 has 2 divisors, whose sum is σ = 11665938. Its totient is φ = 11665936.

The previous prime is 11665931. The next prime is 11665963. The reversal of 11665937 is 73956611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 583696 = 3329^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 11665937 - 2¹² = 11661841 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11665937.

It is not a weakly prime, because it can be changed into another prime (11665931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832968 + 5832969.

It is an arithmetic number, because the mean of its divisors is an integer number (5832969).

Almost surely, 2^11665937 is an apocalyptic number.

It is an amenable number.

11665937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11665937 is an equidigital number, since it uses as much as digits as its factorization.

11665937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 11665937 is about 3415.5434413867. The cubic root of 11665937 is about 226.7983421292.

The spelling of 11665937 in words is "eleven million, six hundred sixty-five thousand, nine hundred thirty-seven".