12171792 has 40 divisors (see below), whose sum is σ = 31605120. Its totient is φ = 4036480.

The previous prime is 12171787. The next prime is 12171811. The reversal of 12171792 is 29717121.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10942 + ... + 12002.

It is an arithmetic number, because the mean of its divisors is an integer number (790128).

Almost surely, 2^12171792 is an apocalyptic number.

12171792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12171792 is an abundant number, since it is smaller than the sum of its proper divisors (19433328).

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

12171792 is a wasteful number, since it uses less digits than its factorization.

12171792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1305 counting only the distinct ones).

The product of its digits is 1764, while the sum is 30.

The square root of 12171792 is about 3488.8095390835. The cubic root of 12171792 is about 230.0301913738.

The spelling of 12171792 in words is "twelve million, one hundred seventy-one thousand, seven hundred ninety-two".