12684371 has 4 divisors (see below), whose sum is σ = 14496432. Its totient is φ = 10872312.

The previous prime is 12684367. The next prime is 12684389. The reversal of 12684371 is 17348621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17348621 = 199 ⋅87179.

It is a cyclic number.

It is not a de Polignac number, because 12684371 - 2² = 12684367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12684361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906020 + ... + 906033.

It is an arithmetic number, because the mean of its divisors is an integer number (3624108).

Almost surely, 2^12684371 is an apocalyptic number.

12684371 is a deficient number, since it is larger than the sum of its proper divisors (1812061).

12684371 is an equidigital number, since it uses as much as digits as its factorization.

12684371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812060.

The product of its digits is 8064, while the sum is 32.

The square root of 12684371 is about 3561.5124596160. The cubic root of 12684371 is about 233.2149097480.

The spelling of 12684371 in words is "twelve million, six hundred eighty-four thousand, three hundred seventy-one".