11863443 has 4 divisors (see below), whose sum is σ = 15817928. Its totient is φ = 7908960.

The previous prime is 11863441. The next prime is 11863457. The reversal of 11863443 is 34436811.

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

It is not a de Polignac number, because 11863443 - 2¹ = 11863441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11863443.

It is not an unprimeable number, because it can be changed into a prime (11863441) 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 3 ways as a sum of consecutive naturals, for example, 1977238 + ... + 1977243.

It is an arithmetic number, because the mean of its divisors is an integer number (3954482).

Almost surely, 2^11863443 is an apocalyptic number.

11863443 is a deficient number, since it is larger than the sum of its proper divisors (3954485).

11863443 is an equidigital number, since it uses as much as digits as its factorization.

11863443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954484.

The product of its digits is 6912, while the sum is 30.

The square root of 11863443 is about 3444.3349140291. The cubic root of 11863443 is about 228.0710958646.

The spelling of 11863443 in words is "eleven million, eight hundred sixty-three thousand, four hundred forty-three".