11968775 has 24 divisors (see below), whose sum is σ = 18269664. Its totient is φ = 7574400.

The previous prime is 11968771. The next prime is 11968777. The reversal of 11968775 is 57786911.

It is not a de Polignac number, because 11968775 - 2² = 11968771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11968771) 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 23 ways as a sum of consecutive naturals, for example, 356 + ... + 4905.

It is an arithmetic number, because the mean of its divisors is an integer number (761236).

Almost surely, 2^11968775 is an apocalyptic number.

11968775 is a deficient number, since it is larger than the sum of its proper divisors (6300889).

11968775 is a wasteful number, since it uses less digits than its factorization.

11968775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291 (or 5286 counting only the distinct ones).

The product of its digits is 105840, while the sum is 44.

The square root of 11968775 is about 3459.5917389195. The cubic root of 11968775 is about 228.7440999006.

The spelling of 11968775 in words is "eleven million, nine hundred sixty-eight thousand, seven hundred seventy-five".