317389 has 4 divisors (see below), whose sum is σ = 318556. Its totient is φ = 316224.

The previous prime is 317371. The next prime is 317399. The reversal of 317389 is 983713.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 983713 = 41 ⋅23993.

It can be written as a sum of positive squares in 2 ways, for example, as 189225 + 128164 = 435^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 317389 - 2¹⁷ = 186317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317399) 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, 67 + ... + 799.

It is an arithmetic number, because the mean of its divisors is an integer number (79639).

2³¹⁷³⁸⁹ is an apocalyptic number.

It is an amenable number.

317389 is a deficient number, since it is larger than the sum of its proper divisors (1167).

317389 is an equidigital number, since it uses as much as digits as its factorization.

317389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its digits is 4536, while the sum is 31.

The square root of 317389 is about 563.3728782964. The cubic root of 317389 is about 68.2124984619.

The spelling of 317389 in words is "three hundred seventeen thousand, three hundred eighty-nine".