11966975 has 6 divisors (see below), whose sum is σ = 14839080. Its totient is φ = 9573560.

The previous prime is 11966953. The next prime is 11966993. The reversal of 11966975 is 57966911.

It is a happy number.

It is not a de Polignac number, because 11966975 - 2¹⁸ = 11704831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239315 + ... + 239364.

It is an arithmetic number, because the mean of its divisors is an integer number (2473180).

Almost surely, 2^11966975 is an apocalyptic number.

11966975 is a deficient number, since it is larger than the sum of its proper divisors (2872105).

11966975 is an equidigital number, since it uses as much as digits as its factorization.

11966975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478689 (or 478684 counting only the distinct ones).

The product of its digits is 102060, while the sum is 44.

The square root of 11966975 is about 3459.3315828350. The cubic root of 11966975 is about 228.7326322825.

The spelling of 11966975 in words is "eleven million, nine hundred sixty-six thousand, nine hundred seventy-five".