12671437 has 2 divisors, whose sum is σ = 12671438. Its totient is φ = 12671436.

The previous prime is 12671431. The next prime is 12671473. The reversal of 12671437 is 73417621.

12671437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (12671473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 741321 = 3454^2 + 861^2 .

It is a cyclic number.

It is not a de Polignac number, because 12671437 - 2²³ = 4282829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12671399 and 12671408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12671431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6335718 + 6335719.

It is an arithmetic number, because the mean of its divisors is an integer number (6335719).

Almost surely, 2^12671437 is an apocalyptic number.

It is an amenable number.

12671437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12671437 is an equidigital number, since it uses as much as digits as its factorization.

12671437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 12671437 is about 3559.6961949020. The cubic root of 12671437 is about 233.1356145933.

It can be divided in two parts, 1267 and 1437, that added together give a square (2704 = 52²).

The spelling of 12671437 in words is "twelve million, six hundred seventy-one thousand, four hundred thirty-seven".