12671938 has 16 divisors (see below), whose sum is σ = 19408896. Its totient is φ = 6203680.

The previous prime is 12671921. The next prime is 12671951. The reversal of 12671938 is 83917621.

It is a junction number, because it is equal to n+sod(n) for n = 12671897 and 12671906.

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, 32895 + ... + 33277.

It is an arithmetic number, because the mean of its divisors is an integer number (1213056).

Almost surely, 2^12671938 is an apocalyptic number.

12671938 is a deficient number, since it is larger than the sum of its proper divisors (6736958).

12671938 is a wasteful number, since it uses less digits than its factorization.

12671938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its digits is 18144, while the sum is 37.

The square root of 12671938 is about 3559.7665653804. The cubic root of 12671938 is about 233.1386871047.

The spelling of 12671938 in words is "twelve million, six hundred seventy-one thousand, nine hundred thirty-eight".