12803653 has 2 divisors, whose sum is σ = 12803654. Its totient is φ = 12803652.

The previous prime is 12803611. The next prime is 12803657. The reversal of 12803653 is 35630821.

12803653 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8485569 + 4318084 = 2913^2 + 2078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12803653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12803657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401826 + 6401827.

It is an arithmetic number, because the mean of its divisors is an integer number (6401827).

Almost surely, 2^12803653 is an apocalyptic number.

It is an amenable number.

12803653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12803653 is an equidigital number, since it uses as much as digits as its factorization.

12803653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12803653 is about 3578.2192498504. The cubic root of 12803653 is about 233.9436699338.

It can be divided in two parts, 12803 and 653, that added together give a square (13456 = 116²).

The spelling of 12803653 in words is "twelve million, eight hundred three thousand, six hundred fifty-three".