649946 has 16 divisors (see below), whose sum is σ = 1099008. Its totient is φ = 285600.

The previous prime is 649937. The next prime is 649969.

649946 is nontrivially palindromic in base 10.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (68688).

2⁶⁴⁹⁹⁴⁶ is an apocalyptic number.

649946 is a deficient number, since it is larger than the sum of its proper divisors (449062).

649946 is a wasteful number, since it uses less digits than its factorization.

649946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its digits is 46656, while the sum is 38.

The square root of 649946 is about 806.1922847559. The cubic root of 649946 is about 86.6215116517.

The spelling of 649946 in words is "six hundred forty-nine thousand, nine hundred forty-six".