12863953 has 2 divisors, whose sum is σ = 12863954. Its totient is φ = 12863952.

The previous prime is 12863941. The next prime is 12863989. The reversal of 12863953 is 35936821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10870209 + 1993744 = 3297^2 + 1412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12863953 is a prime.

It is not a weakly prime, because it can be changed into another prime (12863353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431976 + 6431977.

It is an arithmetic number, because the mean of its divisors is an integer number (6431977).

Almost surely, 2^12863953 is an apocalyptic number.

It is an amenable number.

12863953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12863953 is an equidigital number, since it uses as much as digits as its factorization.

12863953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 12863953 is about 3586.6353313377. The cubic root of 12863953 is about 234.3103547460.

The spelling of 12863953 in words is "twelve million, eight hundred sixty-three thousand, nine hundred fifty-three".