12187674 has 24 divisors (see below), whose sum is σ = 27960660. Its totient is φ = 3823488.

The previous prime is 12187667. The next prime is 12187687. The reversal of 12187674 is 47678121.

It can be written as a sum of positive squares in 2 ways, for example, as 10208025 + 1979649 = 3195^2 + 1407^2 .

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

It is a zygodrome in base 5.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19609 + ... + 20220.

Almost surely, 2^12187674 is an apocalyptic number.

12187674 is an abundant number, since it is smaller than the sum of its proper divisors (15772986).

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

12187674 is a wasteful number, since it uses less digits than its factorization.

12187674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39854 (or 39851 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 12187674 is about 3491.0849316509. The cubic root of 12187674 is about 230.1301972362.

The spelling of 12187674 in words is "twelve million, one hundred eighty-seven thousand, six hundred seventy-four".