12671377 has 2 divisors, whose sum is σ = 12671378. Its totient is φ = 12671376.

The previous prime is 12671339. The next prime is 12671381. The reversal of 12671377 is 77317621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 5494336 = 2679^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 12671377 - 2⁷ = 12671249 is a prime.

It is a super-2 number, since 2×12671377² = 321127590152258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12671317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6335688 + 6335689.

It is an arithmetic number, because the mean of its divisors is an integer number (6335689).

Almost surely, 2^12671377 is an apocalyptic number.

It is an amenable number.

12671377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12671377 is an equidigital number, since it uses as much as digits as its factorization.

12671377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 34.

The square root of 12671377 is about 3559.6877672066. The cubic root of 12671377 is about 233.1352466225.

Adding to 12671377 its reverse (77317621), we get a palindrome (89988998).

The spelling of 12671377 in words is "twelve million, six hundred seventy-one thousand, three hundred seventy-seven".