11785663 has 8 divisors (see below), whose sum is σ = 12214800. Its totient is φ = 11364288.

The previous prime is 11785661. The next prime is 11785667. The reversal of 11785663 is 36658711.

11785663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11785663 - 2¹ = 11785661 is a prime.

It is a super-3 number, since 3×11785663³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11785661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (1526850).

Almost surely, 2^11785663 is an apocalyptic number.

11785663 is a deficient number, since it is larger than the sum of its proper divisors (429137).

11785663 is an equidigital number, since it uses as much as digits as its factorization.

11785663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881.

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

The square root of 11785663 is about 3433.0253421727. The cubic root of 11785663 is about 227.5715702848.

The spelling of 11785663 in words is "eleven million, seven hundred eighty-five thousand, six hundred sixty-three".