12671814 has 8 divisors (see below), whose sum is σ = 25343640. Its totient is φ = 4223936.

The previous prime is 12671779. The next prime is 12671819. The reversal of 12671814 is 41817621.

It is a sphenic number, since it is the product of 3 distinct primes.

12671814 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1055979 + ... + 1055990.

It is an arithmetic number, because the mean of its divisors is an integer number (3167955).

Almost surely, 2^12671814 is an apocalyptic number.

12671814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12671814 is a wasteful number, since it uses less digits than its factorization.

12671814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111974.

The product of its digits is 2688, while the sum is 30.

The square root of 12671814 is about 3559.7491484654. The cubic root of 12671814 is about 233.1379266504.

It can be divided in two parts, 1267 and 1814, that added together give a triangular number (3081 = T₇₈).

The spelling of 12671814 in words is "twelve million, six hundred seventy-one thousand, eight hundred fourteen".