12587297 has 2 divisors, whose sum is σ = 12587298. Its totient is φ = 12587296.

The previous prime is 12587273. The next prime is 12587299. The reversal of 12587297 is 79278521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9186961 + 3400336 = 3031^2 + 1844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12587297 is a prime.

Together with 12587299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12587299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293648 + 6293649.

It is an arithmetic number, because the mean of its divisors is an integer number (6293649).

Almost surely, 2^12587297 is an apocalyptic number.

It is an amenable number.

12587297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12587297 is an equidigital number, since it uses as much as digits as its factorization.

12587297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 12587297 is about 3547.8580862261. The cubic root of 12587297 is about 232.6184512240.

The spelling of 12587297 in words is "twelve million, five hundred eighty-seven thousand, two hundred ninety-seven".