12677191 has 2 divisors, whose sum is σ = 12677192. Its totient is φ = 12677190.

The previous prime is 12677179. The next prime is 12677201. The reversal of 12677191 is 19177621.

It is a strong prime.

It is an emirp because it is prime and its reverse (19177621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12677191 is a prime.

It is a super-2 number, since 2×12677191² = 321422343300962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12677101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6338595 + 6338596.

It is an arithmetic number, because the mean of its divisors is an integer number (6338596).

Almost surely, 2^12677191 is an apocalyptic number.

12677191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12677191 is an equidigital number, since it uses as much as digits as its factorization.

12677191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 34.

The square root of 12677191 is about 3560.5043182111. The cubic root of 12677191 is about 233.1708976037.

The spelling of 12677191 in words is "twelve million, six hundred seventy-seven thousand, one hundred ninety-one".