646204606 has 16 divisors (see below), whose sum is σ = 977623920. Its totient is φ = 320336640.

The previous prime is 646204597. The next prime is 646204613. The reversal of 646204606 is 606402646.

It is a congruent number.

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, 309486 + ... + 311566.

It is an arithmetic number, because the mean of its divisors is an integer number (61101495).

Almost surely, 2^646204606 is an apocalyptic number.

646204606 is a deficient number, since it is larger than the sum of its proper divisors (331419314).

646204606 is a wasteful number, since it uses less digits than its factorization.

646204606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 646204606 is about 25420.5547933164. The cubic root of 646204606 is about 864.5498034881.

The spelling of 646204606 in words is "six hundred forty-six million, two hundred four thousand, six hundred six".