11943493 has 2 divisors, whose sum is σ = 11943494. Its totient is φ = 11943492.

The previous prime is 11943433. The next prime is 11943511. The reversal of 11943493 is 39434911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7935489 + 4008004 = 2817^2 + 2002^2 .

It is an emirp because it is prime and its reverse (39434911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11943493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11943413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971746 + 5971747.

It is an arithmetic number, because the mean of its divisors is an integer number (5971747).

Almost surely, 2^11943493 is an apocalyptic number.

It is an amenable number.

11943493 is a deficient number, since it is larger than the sum of its proper divisors (1).

11943493 is an equidigital number, since it uses as much as digits as its factorization.

11943493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 11943493 is about 3455.9359079705. The cubic root of 11943493 is about 228.5829253704.

The spelling of 11943493 in words is "eleven million, nine hundred forty-three thousand, four hundred ninety-three".