648964 has 12 divisors (see below), whose sum is σ = 1195600. Its totient is φ = 307368.

The previous prime is 648961. The next prime is 648971. The reversal of 648964 is 469846.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (648961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4194 + ... + 4345.

2⁶⁴⁸⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

648964 is a deficient number, since it is larger than the sum of its proper divisors (546636).

648964 is a wasteful number, since it uses less digits than its factorization.

648964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562 (or 8560 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 648964 is about 805.5830186889. The cubic root of 648964 is about 86.5778643330.

The spelling of 648964 in words is "six hundred forty-eight thousand, nine hundred sixty-four".