648896 has 14 divisors (see below), whose sum is σ = 1287780. Its totient is φ = 324416.

The previous prime is 648889. The next prime is 648911. The reversal of 648896 is 698846.

It is an unprimeable number.

648896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006 + ... + 5133.

2⁶⁴⁸⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

648896 is a deficient number, since it is larger than the sum of its proper divisors (638884).

648896 is a wasteful number, since it uses less digits than its factorization.

648896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151 (or 10141 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 648896 is about 805.5408121256. The cubic root of 648896 is about 86.5748402822.

The spelling of 648896 in words is "six hundred forty-eight thousand, eight hundred ninety-six".