12887827 has 2 divisors, whose sum is σ = 12887828. Its totient is φ = 12887826.

The previous prime is 12887813. The next prime is 12887863. The reversal of 12887827 is 72878821.

It is a weak prime.

It is an emirp because it is prime and its reverse (72878821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12887827 is a prime.

It is not a weakly prime, because it can be changed into another prime (12887807) 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 as a sum of consecutive naturals, namely, 6443913 + 6443914.

It is an arithmetic number, because the mean of its divisors is an integer number (6443914).

Almost surely, 2^12887827 is an apocalyptic number.

12887827 is a deficient number, since it is larger than the sum of its proper divisors (1).

12887827 is an equidigital number, since it uses as much as digits as its factorization.

12887827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100352, while the sum is 43.

The square root of 12887827 is about 3589.9619775145. The cubic root of 12887827 is about 234.4552160862.

The spelling of 12887827 in words is "twelve million, eight hundred eighty-seven thousand, eight hundred twenty-seven".