11881799 has 2 divisors, whose sum is σ = 11881800. Its totient is φ = 11881798.

The previous prime is 11881789. The next prime is 11881801. The reversal of 11881799 is 99718811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11881799 - 2²⁰ = 10833223 is a prime.

Together with 11881801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11881769) 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, 5940899 + 5940900.

It is an arithmetic number, because the mean of its divisors is an integer number (5940900).

Almost surely, 2^11881799 is an apocalyptic number.

11881799 is a deficient number, since it is larger than the sum of its proper divisors (1).

11881799 is an equidigital number, since it uses as much as digits as its factorization.

11881799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 44.

The square root of 11881799 is about 3446.9985494630. The cubic root of 11881799 is about 228.1886647604.

The spelling of 11881799 in words is "eleven million, eight hundred eighty-one thousand, seven hundred ninety-nine".