648849203 has 2 divisors, whose sum is σ = 648849204. Its totient is φ = 648849202.

The previous prime is 648849193. The next prime is 648849281. The reversal of 648849203 is 302948846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648849203 - 2²⁰ = 647800627 is a prime.

It is not a weakly prime, because it can be changed into another prime (648849293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324424601 + 324424602.

It is an arithmetic number, because the mean of its divisors is an integer number (324424602).

Almost surely, 2^648849203 is an apocalyptic number.

648849203 is a deficient number, since it is larger than the sum of its proper divisors (1).

648849203 is an equidigital number, since it uses as much as digits as its factorization.

648849203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 648849203 is about 25472.5185837600. The cubic root of 648849203 is about 865.7275903432.

The spelling of 648849203 in words is "six hundred forty-eight million, eight hundred forty-nine thousand, two hundred three".