11966911 has 8 divisors (see below), whose sum is σ = 13276800. Its totient is φ = 10694040.

The previous prime is 11966909. The next prime is 11966917.

11966911 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11966911 - 2¹ = 11966909 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 (11966917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8571 + ... + 9868.

It is an arithmetic number, because the mean of its divisors is an integer number (1659600).

Almost surely, 2^11966911 is an apocalyptic number.

11966911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11966911 is a deficient number, since it is larger than the sum of its proper divisors (1309889).

11966911 is a wasteful number, since it uses less digits than its factorization.

11966911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18509.

The product of its digits is 2916, while the sum is 34.

The square root of 11966911 is about 3459.3223324807. The cubic root of 11966911 is about 228.7322245238.

The spelling of 11966911 in words is "eleven million, nine hundred sixty-six thousand, nine hundred eleven".