11916943 has 2 divisors, whose sum is σ = 11916944. Its totient is φ = 11916942.

The previous prime is 11916917. The next prime is 11916959. The reversal of 11916943 is 34961911.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11916943 - 2²¹ = 9819791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11916899 and 11916908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11916973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5958471 + 5958472.

It is an arithmetic number, because the mean of its divisors is an integer number (5958472).

Almost surely, 2^11916943 is an apocalyptic number.

11916943 is a deficient number, since it is larger than the sum of its proper divisors (1).

11916943 is an equidigital number, since it uses as much as digits as its factorization.

11916943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 11916943 is about 3452.0925537998. The cubic root of 11916943 is about 228.4134222163.

The spelling of 11916943 in words is "eleven million, nine hundred sixteen thousand, nine hundred forty-three".