648674608 has 30 divisors (see below), whose sum is σ = 1287360932. Its totient is φ = 316468320.

The previous prime is 648674591. The next prime is 648674617. The reversal of 648674608 is 806476846.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667563 + ... + 668533.

Almost surely, 2^648674608 is an apocalyptic number.

It is an amenable number.

648674608 is a deficient number, since it is larger than the sum of its proper divisors (638686324).

648674608 is an frugal number, since it uses more digits than its factorization.

648674608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 648674608 is about 25469.0912283890. The cubic root of 648674608 is about 865.6499322025.

The spelling of 648674608 in words is "six hundred forty-eight million, six hundred seventy-four thousand, six hundred eight".