11805967 has 4 divisors (see below), whose sum is σ = 11927776. Its totient is φ = 11684160.

The previous prime is 11805949. The next prime is 11805971. The reversal of 11805967 is 76950811.

11805967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76950811 = 7 ⋅10992973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11805967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11805067) 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 in 3 ways as a sum of consecutive naturals, for example, 60759 + ... + 60952.

It is an arithmetic number, because the mean of its divisors is an integer number (2981944).

Almost surely, 2^11805967 is an apocalyptic number.

11805967 is a deficient number, since it is larger than the sum of its proper divisors (121809).

11805967 is an equidigital number, since it uses as much as digits as its factorization.

11805967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121808.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 11805967 is about 3435.9812281210. The cubic root of 11805967 is about 227.7021798873.

The spelling of 11805967 in words is "eleven million, eight hundred five thousand, nine hundred sixty-seven".