605668217 has 16 divisors (see below), whose sum is σ = 767923200. Its totient is φ = 463946640.

The previous prime is 605668199. The next prime is 605668237. The reversal of 605668217 is 712866506.

It is a cyclic number.

It is not a de Polignac number, because 605668217 - 2¹⁰ = 605667193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (605668237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62117 + ... + 71202.

It is an arithmetic number, because the mean of its divisors is an integer number (47995200).

Almost surely, 2^605668217 is an apocalyptic number.

It is an amenable number.

605668217 is a deficient number, since it is larger than the sum of its proper divisors (162254983).

605668217 is a wasteful number, since it uses less digits than its factorization.

605668217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133396.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 605668217 is about 24610.3274460134. The cubic root of 605668217 is about 846.0803226536.

The spelling of 605668217 in words is "six hundred five million, six hundred sixty-eight thousand, two hundred seventeen".