11943816 has 16 divisors (see below), whose sum is σ = 29859600. Its totient is φ = 3981264.

The previous prime is 11943791. The next prime is 11943817. The reversal of 11943816 is 61834911.

It is not an unprimeable number, because it can be changed into a prime (11943817) 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 3 ways as a sum of consecutive naturals, for example, 248806 + ... + 248853.

It is an arithmetic number, because the mean of its divisors is an integer number (1866225).

Almost surely, 2^11943816 is an apocalyptic number.

It is an amenable number.

11943816 is an abundant number, since it is smaller than the sum of its proper divisors (17915784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11943816 is a wasteful number, since it uses less digits than its factorization.

11943816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497668 (or 497664 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 11943816 is about 3455.9826388453. The cubic root of 11943816 is about 228.5849859518.

The spelling of 11943816 in words is "eleven million, nine hundred forty-three thousand, eight hundred sixteen".