649106 has 16 divisors (see below), whose sum is σ = 1033344. Its totient is φ = 305184.

The previous prime is 649093. The next prime is 649123. The reversal of 649106 is 601946.

It is an unprimeable number.

649106 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670 + ... + 4806.

It is an arithmetic number, because the mean of its divisors is an integer number (64584).

2⁶⁴⁹¹⁰⁶ is an apocalyptic number.

649106 is a deficient number, since it is larger than the sum of its proper divisors (384238).

649106 is a wasteful number, since it uses less digits than its factorization.

649106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 649106 is about 805.6711487946. The cubic root of 649106 is about 86.5841785817.

The spelling of 649106 in words is "six hundred forty-nine thousand, one hundred six".