11839843 has 4 divisors (see below), whose sum is σ = 11896168. Its totient is φ = 11783520.

The previous prime is 11839813. The next prime is 11839847. The reversal of 11839843 is 34893811.

11839843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11839843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11839847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27846 + ... + 28267.

It is an arithmetic number, because the mean of its divisors is an integer number (2974042).

Almost surely, 2^11839843 is an apocalyptic number.

11839843 is a deficient number, since it is larger than the sum of its proper divisors (56325).

11839843 is an equidigital number, since it uses as much as digits as its factorization.

11839843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56324.

The product of its digits is 20736, while the sum is 37.

The square root of 11839843 is about 3440.9072931423. The cubic root of 11839843 is about 227.9197611877.

It can be divided in two parts, 1183 and 9843, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 11839843 in words is "eleven million, eight hundred thirty-nine thousand, eight hundred forty-three".