12648893 has 2 divisors, whose sum is σ = 12648894. Its totient is φ = 12648892.

The previous prime is 12648887. The next prime is 12648917. The reversal of 12648893 is 39884621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7991929 + 4656964 = 2827^2 + 2158^2 .

It is a cyclic number.

It is not a de Polignac number, because 12648893 - 2⁴ = 12648877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12648893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12648793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324446 + 6324447.

It is an arithmetic number, because the mean of its divisors is an integer number (6324447).

Almost surely, 2^12648893 is an apocalyptic number.

It is an amenable number.

12648893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648893 is an equidigital number, since it uses as much as digits as its factorization.

12648893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 12648893 is about 3556.5282228600. The cubic root of 12648893 is about 232.9972738173.

The spelling of 12648893 in words is "twelve million, six hundred forty-eight thousand, eight hundred ninety-three".