12597643 has 2 divisors, whose sum is σ = 12597644. Its totient is φ = 12597642.

The previous prime is 12597553. The next prime is 12597647. The reversal of 12597643 is 34679521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12597643 - 2²¹ = 10500491 is a prime.

It is not a weakly prime, because it can be changed into another prime (12597647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6298821 + 6298822.

It is an arithmetic number, because the mean of its divisors is an integer number (6298822).

Almost surely, 2^12597643 is an apocalyptic number.

12597643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12597643 is an equidigital number, since it uses as much as digits as its factorization.

12597643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 12597643 is about 3549.3158495688. The cubic root of 12597643 is about 232.6821665559.

The spelling of 12597643 in words is "twelve million, five hundred ninety-seven thousand, six hundred forty-three".