317623 has 8 divisors (see below), whose sum is σ = 340400. Its totient is φ = 295488.

The previous prime is 317621. The next prime is 317651. The reversal of 317623 is 326713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 317623 - 2¹ = 317621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317594 and 317603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (42550).

2³¹⁷⁶²³ is an apocalyptic number.

317623 is a deficient number, since it is larger than the sum of its proper divisors (22777).

317623 is a wasteful number, since it uses less digits than its factorization.

317623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its digits is 756, while the sum is 22.

The square root of 317623 is about 563.5805177612. The cubic root of 317623 is about 68.2292579206.

The spelling of 317623 in words is "three hundred seventeen thousand, six hundred twenty-three".