11786993 has 2 divisors, whose sum is σ = 11786994. Its totient is φ = 11786992.

The previous prime is 11786981. The next prime is 11787007. The reversal of 11786993 is 39968711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 1495729 = 3208^2 + 1223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11786993 is a prime.

It is a super-4 number, since 4×11786993⁴ (a number of 29 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11786903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893496 + 5893497.

It is an arithmetic number, because the mean of its divisors is an integer number (5893497).

Almost surely, 2^11786993 is an apocalyptic number.

It is an amenable number.

11786993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11786993 is an equidigital number, since it uses as much as digits as its factorization.

11786993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 11786993 is about 3433.2190434052. The cubic root of 11786993 is about 227.5801303690.

The spelling of 11786993 in words is "eleven million, seven hundred eighty-six thousand, nine hundred ninety-three".