11871843 has 8 divisors (see below), whose sum is σ = 15986256. Its totient is φ = 7836000.

The previous prime is 11871829. The next prime is 11871907. The reversal of 11871843 is 34817811.

11871843 is digitally balanced in base 2, 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 not a de Polignac number, because 11871843 - 2¹⁰ = 11870819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11871823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19288 + ... + 19893.

It is an arithmetic number, because the mean of its divisors is an integer number (1998282).

Almost surely, 2^11871843 is an apocalyptic number.

11871843 is a deficient number, since it is larger than the sum of its proper divisors (4114413).

11871843 is a wasteful number, since it uses less digits than its factorization.

11871843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39285.

The product of its digits is 5376, while the sum is 33.

The square root of 11871843 is about 3445.5540918697. The cubic root of 11871843 is about 228.1249123162.

The spelling of 11871843 in words is "eleven million, eight hundred seventy-one thousand, eight hundred forty-three".