11878943 has 4 divisors (see below), whose sum is σ = 12103128. Its totient is φ = 11654760.

The previous prime is 11878927. The next prime is 11878963. The reversal of 11878943 is 34987811.

11878943 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, and also an emirpimes, since its reverse is a distinct semiprime: 34987811 = 311 ⋅112501.

It is a cyclic number.

It is not a de Polignac number, because 11878943 - 2⁴ = 11878927 is a prime.

It is a super-2 number, since 2×11878943² = 282218573594498, which contains 22 as substring.

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 11878943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878963) 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, 112013 + ... + 112118.

It is an arithmetic number, because the mean of its divisors is an integer number (3025782).

Almost surely, 2^11878943 is an apocalyptic number.

11878943 is a deficient number, since it is larger than the sum of its proper divisors (224185).

11878943 is an equidigital number, since it uses as much as digits as its factorization.

11878943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224184.

The product of its digits is 48384, while the sum is 41.

The square root of 11878943 is about 3446.5842511101. The cubic root of 11878943 is about 228.1703802383.

It can be divided in two parts, 11878 and 943, that added together give a palindrome (12821).

The spelling of 11878943 in words is "eleven million, eight hundred seventy-eight thousand, nine hundred forty-three".