11984172 has 12 divisors (see below), whose sum is σ = 27963096. Its totient is φ = 3994720.

The previous prime is 11984171. The next prime is 11984183. The reversal of 11984172 is 27148911.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11984171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499329 + ... + 499352.

It is an arithmetic number, because the mean of its divisors is an integer number (2330258).

Almost surely, 2^11984172 is an apocalyptic number.

11984172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11984172 is an abundant number, since it is smaller than the sum of its proper divisors (15978924).

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

11984172 is a wasteful number, since it uses less digits than its factorization.

11984172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998688 (or 998686 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 11984172 is about 3461.8162862867. The cubic root of 11984172 is about 228.8421456829.

The spelling of 11984172 in words is "eleven million, nine hundred eighty-four thousand, one hundred seventy-two".