12949911 has 24 divisors (see below), whose sum is σ = 20305376. Its totient is φ = 7905600.

The previous prime is 12949883. The next prime is 12949919. The reversal of 12949911 is 11994921.

It is not a de Polignac number, because 12949911 - 2⁵ = 12949879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17301 + ... + 18033.

Almost surely, 2^12949911 is an apocalyptic number.

12949911 is a deficient number, since it is larger than the sum of its proper divisors (7355465).

12949911 is a wasteful number, since it uses less digits than its factorization.

12949911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 900 counting only the distinct ones).

The product of its digits is 5832, while the sum is 36.

The square root of 12949911 is about 3598.5984771852. The cubic root of 12949911 is about 234.8310903325.

The spelling of 12949911 in words is "twelve million, nine hundred forty-nine thousand, nine hundred eleven".