317398 has 4 divisors (see below), whose sum is σ = 476100. Its totient is φ = 158698.

The previous prime is 317371. The next prime is 317399. The reversal of 317398 is 893713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893713 = 67 ⋅13339.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317399) by changing a digit.

317398 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 as a sum of consecutive naturals, namely, 79348 + ... + 79351.

It is an arithmetic number, because the mean of its divisors is an integer number (119025).

2³¹⁷³⁹⁸ is an apocalyptic number.

317398 is a deficient number, since it is larger than the sum of its proper divisors (158702).

317398 is a wasteful number, since it uses less digits than its factorization.

317398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158701.

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

The square root of 317398 is about 563.3808658448. The cubic root of 317398 is about 68.2131432087.

The spelling of 317398 in words is "three hundred seventeen thousand, three hundred ninety-eight".