12671897 has 4 divisors (see below), whose sum is σ = 14482176. Its totient is φ = 10861620.

The previous prime is 12671887. The next prime is 12671921. The reversal of 12671897 is 79817621.

12671897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12671897 - 2⁴ = 12671881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12671887) 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, 905129 + ... + 905142.

It is an arithmetic number, because the mean of its divisors is an integer number (3620544).

Almost surely, 2^12671897 is an apocalyptic number.

It is an amenable number.

12671897 is a deficient number, since it is larger than the sum of its proper divisors (1810279).

12671897 is an equidigital number, since it uses as much as digits as its factorization.

12671897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810278.

The product of its digits is 42336, while the sum is 41.

The square root of 12671897 is about 3559.7608065711. The cubic root of 12671897 is about 233.1384356647.

The spelling of 12671897 in words is "twelve million, six hundred seventy-one thousand, eight hundred ninety-seven".