11944903 has 2 divisors, whose sum is σ = 11944904. Its totient is φ = 11944902.

The previous prime is 11944873. The next prime is 11944913. The reversal of 11944903 is 30944911.

It is a strong prime.

It is an emirp because it is prime and its reverse (30944911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11944903 - 2⁹ = 11944391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11944913) 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, 5972451 + 5972452.

It is an arithmetic number, because the mean of its divisors is an integer number (5972452).

Almost surely, 2^11944903 is an apocalyptic number.

11944903 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944903 is an equidigital number, since it uses as much as digits as its factorization.

11944903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 11944903 is about 3456.1398987888. The cubic root of 11944903 is about 228.5919202053.

The spelling of 11944903 in words is "eleven million, nine hundred forty-four thousand, nine hundred three".