11808866 has 4 divisors (see below), whose sum is σ = 17713302. Its totient is φ = 5904432.

The previous prime is 11808857. The next prime is 11808869. The reversal of 11808866 is 66880811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 105625 = 3421^2 + 325^2 .

It is not an unprimeable number, because it can be changed into a prime (11808869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2952215 + ... + 2952218.

Almost surely, 2^11808866 is an apocalyptic number.

11808866 is a deficient number, since it is larger than the sum of its proper divisors (5904436).

11808866 is an equidigital number, since it uses as much as digits as its factorization.

11808866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904435.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 11808866 is about 3436.4030613419. The cubic root of 11808866 is about 227.7208160735.

The spelling of 11808866 in words is "eleven million, eight hundred eight thousand, eight hundred sixty-six".