320617 has 4 divisors (see below), whose sum is σ = 349776. Its totient is φ = 291460.

The previous prime is 320611. The next prime is 320627. The reversal of 320617 is 716023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320617 - 2³ = 320609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320594 and 320603.

It is not an unprimeable number, because it can be changed into a prime (320611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14563 + ... + 14584.

It is an arithmetic number, because the mean of its divisors is an integer number (87444).

2³²⁰⁶¹⁷ is an apocalyptic number.

It is an amenable number.

320617 is a deficient number, since it is larger than the sum of its proper divisors (29159).

320617 is a wasteful number, since it uses less digits than its factorization.

320617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29158.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 320617 is about 566.2305184287. The cubic root of 320617 is about 68.4429702751.

It can be divided in two parts, 3206 and 17, that added together give a palindrome (3223).

The spelling of 320617 in words is "three hundred twenty thousand, six hundred seventeen".