317216 has 24 divisors (see below), whose sum is σ = 653184. Its totient is φ = 151360.

The previous prime is 317209. The next prime is 317227. The reversal of 317216 is 612713.

It is a happy number.

It is an unprimeable number.

317216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2³¹⁷²¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326592).

317216 is an abundant number, since it is smaller than the sum of its proper divisors (335968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317216 is a wasteful number, since it uses less digits than its factorization.

317216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 456 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 317216 is about 563.2193178505. The cubic root of 317216 is about 68.2001026248.

Adding to 317216 its reverse (612713), we get a palindrome (929929).

The spelling of 317216 in words is "three hundred seventeen thousand, two hundred sixteen".