11979824 has 20 divisors (see below), whose sum is σ = 23272320. Its totient is φ = 5974080.

The previous prime is 11979817. The next prime is 11979829. The reversal of 11979824 is 42897911.

It is not an unprimeable number, because it can be changed into a prime (11979829) 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 3 ways as a sum of consecutive naturals, for example, 7409 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (1163616).

Almost surely, 2^11979824 is an apocalyptic number.

It is an amenable number.

11979824 is a deficient number, since it is larger than the sum of its proper divisors (11292496).

11979824 is a wasteful number, since it uses less digits than its factorization.

11979824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1982 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 11979824 is about 3461.1882352741. The cubic root of 11979824 is about 228.8144667854.

The spelling of 11979824 in words is "eleven million, nine hundred seventy-nine thousand, eight hundred twenty-four".