11665783 has 2 divisors, whose sum is σ = 11665784. Its totient is φ = 11665782.

The previous prime is 11665769. The next prime is 11665789. The reversal of 11665783 is 38756611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11665783 - 2⁹ = 11665271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11665789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832891 + 5832892.

It is an arithmetic number, because the mean of its divisors is an integer number (5832892).

Almost surely, 2^11665783 is an apocalyptic number.

11665783 is a deficient number, since it is larger than the sum of its proper divisors (1).

11665783 is an equidigital number, since it uses as much as digits as its factorization.

11665783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 11665783 is about 3415.5208973157. The cubic root of 11665783 is about 226.7973441497.

The spelling of 11665783 in words is "eleven million, six hundred sixty-five thousand, seven hundred eighty-three".