648674500 has 24 divisors (see below), whose sum is σ = 1416706200. Its totient is φ = 259469600.

The previous prime is 648674447. The next prime is 648674501. The reversal of 648674500 is 5476846.

It can be written as a sum of positive squares in 4 ways, for example, as 1887876 + 646786624 = 1374^2 + 25432^2 .

It is not an unprimeable number, because it can be changed into a prime (648674501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648175 + ... + 649174.

It is an arithmetic number, because the mean of its divisors is an integer number (59029425).

Almost surely, 2^648674500 is an apocalyptic number.

It is an amenable number.

648674500 is an abundant number, since it is smaller than the sum of its proper divisors (768031700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648674500 is a wasteful number, since it uses less digits than its factorization.

648674500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297368 (or 1297356 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 648674500 is about 25469.0891081719. The cubic root of 648674500 is about 865.6498841609.

The spelling of 648674500 in words is "six hundred forty-eight million, six hundred seventy-four thousand, five hundred".