648971303 has 2 divisors, whose sum is σ = 648971304. Its totient is φ = 648971302.

The previous prime is 648971287. The next prime is 648971321. The reversal of 648971303 is 303179846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648971303 - 2⁴ = 648971287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648971363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324485651 + 324485652.

It is an arithmetic number, because the mean of its divisors is an integer number (324485652).

Almost surely, 2^648971303 is an apocalyptic number.

648971303 is a deficient number, since it is larger than the sum of its proper divisors (1).

648971303 is an equidigital number, since it uses as much as digits as its factorization.

648971303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 648971303 is about 25474.9151715958. The cubic root of 648971303 is about 865.7818909463.

The spelling of 648971303 in words is "six hundred forty-eight million, nine hundred seventy-one thousand, three hundred three".