11842993 has 2 divisors, whose sum is σ = 11842994. Its totient is φ = 11842992.

The previous prime is 11842937. The next prime is 11843047. The reversal of 11842993 is 39924811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 91809 = 3428^2 + 303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11842993 is a prime.

It is not a weakly prime, because it can be changed into another prime (11842393) 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, 5921496 + 5921497.

It is an arithmetic number, because the mean of its divisors is an integer number (5921497).

Almost surely, 2^11842993 is an apocalyptic number.

It is an amenable number.

11842993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11842993 is an equidigital number, since it uses as much as digits as its factorization.

11842993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 11842993 is about 3441.3649908140. The cubic root of 11842993 is about 227.9399721423.

The spelling of 11842993 in words is "eleven million, eight hundred forty-two thousand, nine hundred ninety-three".