11968535 has 4 divisors (see below), whose sum is σ = 14362248. Its totient is φ = 9574824.

The previous prime is 11968507. The next prime is 11968547. The reversal of 11968535 is 53586911.

11968535 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: 53586911 = 7 ⋅7655273.

It is a cyclic number.

It is not a de Polignac number, because 11968535 - 2⁶ = 11968471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1196849 + ... + 1196858.

It is an arithmetic number, because the mean of its divisors is an integer number (3590562).

Almost surely, 2^11968535 is an apocalyptic number.

11968535 is a deficient number, since it is larger than the sum of its proper divisors (2393713).

11968535 is an equidigital number, since it uses as much as digits as its factorization.

11968535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393712.

The product of its digits is 32400, while the sum is 38.

The square root of 11968535 is about 3459.5570525719. The cubic root of 11968535 is about 228.7425709513.

The spelling of 11968535 in words is "eleven million, nine hundred sixty-eight thousand, five hundred thirty-five".