12568993 has 2 divisors, whose sum is σ = 12568994. Its totient is φ = 12568992.

The previous prime is 12568991. The next prime is 12569021. The reversal of 12568993 is 39986521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11614464 + 954529 = 3408^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 12568993 - 2¹ = 12568991 is a prime.

Together with 12568991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12568991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284496 + 6284497.

It is an arithmetic number, because the mean of its divisors is an integer number (6284497).

Almost surely, 2^12568993 is an apocalyptic number.

It is an amenable number.

12568993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12568993 is an equidigital number, since it uses as much as digits as its factorization.

12568993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 12568993 is about 3545.2775631818. The cubic root of 12568993 is about 232.5056413631.

The spelling of 12568993 in words is "twelve million, five hundred sixty-eight thousand, nine hundred ninety-three".