12187672 has 24 divisors (see below), whose sum is σ = 26583660. Its totient is φ = 5223120.

The previous prime is 12187667. The next prime is 12187687. The reversal of 12187672 is 27678121.

It is a happy number.

12187672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15154 + ... + 15937.

Almost surely, 2^12187672 is an apocalyptic number.

It is an amenable number.

12187672 is an abundant number, since it is smaller than the sum of its proper divisors (14395988).

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

12187672 is a wasteful number, since it uses less digits than its factorization.

12187672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31111 (or 31100 counting only the distinct ones).

The product of its digits is 9408, while the sum is 34.

The square root of 12187672 is about 3491.0846452070. The cubic root of 12187672 is about 230.1301846480.

The spelling of 12187672 in words is "twelve million, one hundred eighty-seven thousand, six hundred seventy-two".