12867587 has 2 divisors, whose sum is σ = 12867588. Its totient is φ = 12867586.

The previous prime is 12867583. The next prime is 12867593. The reversal of 12867587 is 78576821.

It is a weak prime.

It is an emirp because it is prime and its reverse (78576821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12867587 - 2² = 12867583 is a prime.

It is not a weakly prime, because it can be changed into another prime (12867581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6433793 + 6433794.

It is an arithmetic number, because the mean of its divisors is an integer number (6433794).

Almost surely, 2^12867587 is an apocalyptic number.

12867587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12867587 is an equidigital number, since it uses as much as digits as its factorization.

12867587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The square root of 12867587 is about 3587.1418985036. The cubic root of 12867587 is about 234.3324164887.

The spelling of 12867587 in words is "twelve million, eight hundred sixty-seven thousand, five hundred eighty-seven".