11944487 has 2 divisors, whose sum is σ = 11944488. Its totient is φ = 11944486.

The previous prime is 11944469. The next prime is 11944501. The reversal of 11944487 is 78444911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11944487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11944487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11944417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972243 + 5972244.

It is an arithmetic number, because the mean of its divisors is an integer number (5972244).

Almost surely, 2^11944487 is an apocalyptic number.

11944487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944487 is an equidigital number, since it uses as much as digits as its factorization.

11944487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 11944487 is about 3456.0797155158. The cubic root of 11944487 is about 228.5892664836.

The spelling of 11944487 in words is "eleven million, nine hundred forty-four thousand, four hundred eighty-seven".