11993912 has 16 divisors (see below), whose sum is σ = 25701360. Its totient is φ = 5140224.

The previous prime is 11993911. The next prime is 11993963. The reversal of 11993912 is 21939911.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993911) 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, 107033 + ... + 107144.

It is an arithmetic number, because the mean of its divisors is an integer number (1606335).

Almost surely, 2^11993912 is an apocalyptic number.

It is an amenable number.

11993912 is an abundant number, since it is smaller than the sum of its proper divisors (13707448).

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

11993912 is a wasteful number, since it uses less digits than its factorization.

11993912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214190 (or 214186 counting only the distinct ones).

The product of its digits is 4374, while the sum is 35.

The square root of 11993912 is about 3463.2227765479. Note that the first 3 decimals coincide. The cubic root of 11993912 is about 228.9041251819.

The spelling of 11993912 in words is "eleven million, nine hundred ninety-three thousand, nine hundred twelve".