12589387 has 2 divisors, whose sum is σ = 12589388. Its totient is φ = 12589386.

The previous prime is 12589351. The next prime is 12589397. The reversal of 12589387 is 78398521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12589387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12589307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6294693 + 6294694.

It is an arithmetic number, because the mean of its divisors is an integer number (6294694).

Almost surely, 2^12589387 is an apocalyptic number.

12589387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12589387 is an equidigital number, since it uses as much as digits as its factorization.

12589387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 12589387 is about 3548.1526179126. The cubic root of 12589387 is about 232.6313251994.

The spelling of 12589387 in words is "twelve million, five hundred eighty-nine thousand, three hundred eighty-seven".