11966993 has 2 divisors, whose sum is σ = 11966994. Its totient is φ = 11966992.

The previous prime is 11966953. The next prime is 11967037. The reversal of 11966993 is 39966911.

It is a happy number.

It is an a-pointer prime, because the next prime (11967037) can be obtained adding 11966993 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10163344 + 1803649 = 3188^2 + 1343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11966993 is a prime.

It is not a weakly prime, because it can be changed into another prime (11966953) 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, 5983496 + 5983497.

It is an arithmetic number, because the mean of its divisors is an integer number (5983497).

Almost surely, 2^11966993 is an apocalyptic number.

It is an amenable number.

11966993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11966993 is an equidigital number, since it uses as much as digits as its factorization.

11966993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 44.

The square root of 11966993 is about 3459.3341844927. The cubic root of 11966993 is about 228.7327469644.

The spelling of 11966993 in words is "eleven million, nine hundred sixty-six thousand, nine hundred ninety-three".