659617 has 16 divisors (see below), whose sum is σ = 836352. Its totient is φ = 506880.

The previous prime is 659611. The next prime is 659621. The reversal of 659617 is 716956.

It is a cyclic number.

It is not a de Polignac number, because 659617 - 2³ = 659609 is a prime.

It is a Duffinian number.

659617 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (659611) 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, 2617 + ... + 2857.

It is an arithmetic number, because the mean of its divisors is an integer number (52272).

2⁶⁵⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

659617 is a deficient number, since it is larger than the sum of its proper divisors (176735).

659617 is a wasteful number, since it uses less digits than its factorization.

659617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its digits is 11340, while the sum is 34.

The square root of 659617 is about 812.1680860512. The cubic root of 659617 is about 87.0490321222.

The spelling of 659617 in words is "six hundred fifty-nine thousand, six hundred seventeen".