650606 has 8 divisors (see below), whose sum is σ = 1064664. Its totient is φ = 295720.

The previous prime is 650599. The next prime is 650609. The reversal of 650606 is 606056.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 650606.

It is not an unprimeable number, because it can be changed into a prime (650609) by changing a digit.

650606 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14765 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (133083).

2⁶⁵⁰⁶⁰⁶ is an apocalyptic number.

650606 is a deficient number, since it is larger than the sum of its proper divisors (414058).

650606 is a wasteful number, since it uses less digits than its factorization.

650606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29586.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 650606 is about 806.6015125203. The cubic root of 650606 is about 86.6508222185.

The spelling of 650606 in words is "six hundred fifty thousand, six hundred six".