11866383 has 6 divisors (see below), whose sum is σ = 17140344. Its totient is φ = 7910916.

The previous prime is 11866363. The next prime is 11866399. The reversal of 11866383 is 38366811.

11866383 is a `hidden beast` number, since 1 + 18 + 6 + 638 + 3 = 666.

It is not a de Polignac number, because 11866383 - 2⁶ = 11866319 is a prime.

It is a super-2 number, since 2×11866383² = 281622091005378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866313) 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 in 5 ways as a sum of consecutive naturals, for example, 659235 + ... + 659252.

It is an arithmetic number, because the mean of its divisors is an integer number (2856724).

Almost surely, 2^11866383 is an apocalyptic number.

11866383 is a deficient number, since it is larger than the sum of its proper divisors (5273961).

11866383 is a wasteful number, since it uses less digits than its factorization.

11866383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318493 (or 1318490 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 11866383 is about 3444.7616753558. The cubic root of 11866383 is about 228.0899345115.

It can be divided in two parts, 1186 and 6383, that added together give a square (7569 = 87²).

The spelling of 11866383 in words is "eleven million, eight hundred sixty-six thousand, three hundred eighty-three".