11963999 has 2 divisors, whose sum is σ = 11964000. Its totient is φ = 11963998.

The previous prime is 11963993. The next prime is 11964011. The reversal of 11963999 is 99936911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11963999 - 2¹² = 11959903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11963993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5981999 + 5982000.

It is an arithmetic number, because the mean of its divisors is an integer number (5982000).

Almost surely, 2^11963999 is an apocalyptic number.

11963999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11963999 is an equidigital number, since it uses as much as digits as its factorization.

11963999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 47.

The square root of 11963999 is about 3458.9014151895. The cubic root of 11963999 is about 228.7136699647.

The spelling of 11963999 in words is "eleven million, nine hundred sixty-three thousand, nine hundred ninety-nine".