648963205 has 16 divisors (see below), whose sum is σ = 853593408. Its totient is φ = 469728000.

The previous prime is 648963199. The next prime is 648963229. The reversal of 648963205 is 502369846.

It is not a de Polignac number, because 648963205 - 2³ = 648963197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16356 + ... + 39565.

It is an arithmetic number, because the mean of its divisors is an integer number (53349588).

Almost surely, 2^648963205 is an apocalyptic number.

It is an amenable number.

648963205 is a deficient number, since it is larger than the sum of its proper divisors (204630203).

648963205 is a wasteful number, since it uses less digits than its factorization.

648963205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56148.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 648963205 is about 25474.7562304333. The cubic root of 648963205 is about 865.7782897953.

The spelling of 648963205 in words is "six hundred forty-eight million, nine hundred sixty-three thousand, two hundred five".