12877289 has 2 divisors, whose sum is σ = 12877290. Its totient is φ = 12877288.

The previous prime is 12877261. The next prime is 12877301. The reversal of 12877289 is 98277821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 5721664 = 2675^2 + 2392^2 .

It is an emirp because it is prime and its reverse (98277821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12877289 - 2¹² = 12873193 is a prime.

It is not a weakly prime, because it can be changed into another prime (12877219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438644 + 6438645.

It is an arithmetic number, because the mean of its divisors is an integer number (6438645).

Almost surely, 2^12877289 is an apocalyptic number.

It is an amenable number.

12877289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12877289 is an equidigital number, since it uses as much as digits as its factorization.

12877289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 44.

The square root of 12877289 is about 3588.4939738002. The cubic root of 12877289 is about 234.3912962654.

The spelling of 12877289 in words is "twelve million, eight hundred seventy-seven thousand, two hundred eighty-nine".