11943941 has 2 divisors, whose sum is σ = 11943942. Its totient is φ = 11943940.

The previous prime is 11943929. The next prime is 11943947. The reversal of 11943941 is 14934911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11195716 + 748225 = 3346^2 + 865^2 .

It is an emirp because it is prime and its reverse (14934911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11943941 is a prime.

It is a super-2 number, since 2×11943941² = 285315453222962, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11943898 and 11943907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11943947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971970 + 5971971.

It is an arithmetic number, because the mean of its divisors is an integer number (5971971).

Almost surely, 2^11943941 is an apocalyptic number.

It is an amenable number.

11943941 is a deficient number, since it is larger than the sum of its proper divisors (1).

11943941 is an equidigital number, since it uses as much as digits as its factorization.

11943941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 11943941 is about 3456.0007233796. Note that the first 3 decimals coincide. The cubic root of 11943941 is about 228.5857833805.

The spelling of 11943941 in words is "eleven million, nine hundred forty-three thousand, nine hundred forty-one".