649068 has 24 divisors (see below), whose sum is σ = 1731072. Its totient is φ = 185424.

The previous prime is 649063. The next prime is 649069. The reversal of 649068 is 860946.

It is not an unprimeable number, because it can be changed into a prime (649063) 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, 3780 + ... + 3947.

It is an arithmetic number, because the mean of its divisors is an integer number (72128).

2⁶⁴⁹⁰⁶⁸ is an apocalyptic number.

It is an amenable number.

649068 is an abundant number, since it is smaller than the sum of its proper divisors (1082004).

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

649068 is a wasteful number, since it uses less digits than its factorization.

649068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7739 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 649068 is about 805.6475656266. The cubic root of 649068 is about 86.5824889434.

The spelling of 649068 in words is "six hundred forty-nine thousand, sixty-eight".