12671659 has 16 divisors (see below), whose sum is σ = 17015040. Its totient is φ = 9113760.

The previous prime is 12671639. The next prime is 12671669. The reversal of 12671659 is 95617621.

12671659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12671659 - 2⁷ = 12671531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12671609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5329 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (1063440).

Almost surely, 2^12671659 is an apocalyptic number.

12671659 is a deficient number, since it is larger than the sum of its proper divisors (4343381).

12671659 is a wasteful number, since it uses less digits than its factorization.

12671659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690.

The product of its digits is 22680, while the sum is 37.

The square root of 12671659 is about 3559.7273772018. The cubic root of 12671659 is about 233.1369760755.

It can be divided in two parts, 1267 and 1659, that added together give a triangular number (2926 = T₇₆).

The spelling of 12671659 in words is "twelve million, six hundred seventy-one thousand, six hundred fifty-nine".