12671434 has 16 divisors (see below), whose sum is σ = 19780200. Its totient is φ = 6080704.

The previous prime is 12671431. The next prime is 12671437. The reversal of 12671434 is 43417621.

It is an interprime number because it is at equal distance from previous prime (12671431) and next prime (12671437).

It can be written as a sum of positive squares in 4 ways, for example, as 10857025 + 1814409 = 3295^2 + 1347^2 .

It is not an unprimeable number, because it can be changed into a prime (12671431) 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 7 ways as a sum of consecutive naturals, for example, 10872 + ... + 11980.

Almost surely, 2^12671434 is an apocalyptic number.

12671434 is a deficient number, since it is larger than the sum of its proper divisors (7108766).

12671434 is a wasteful number, since it uses less digits than its factorization.

12671434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 4032, while the sum is 28.

The square root of 12671434 is about 3559.6957735177. The cubic root of 12671434 is about 233.1355961948.

It can be divided in two parts, 1267 and 1434, that added together give a triangular number (2701 = T₇₃).

The spelling of 12671434 in words is "twelve million, six hundred seventy-one thousand, four hundred thirty-four".