317899 has 4 divisors (see below), whose sum is σ = 325336. Its totient is φ = 310464.

The previous prime is 317887. The next prime is 317903. The reversal of 317899 is 998713.

317899 = 13² + 14² + ... + 98².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998713 = 73 ⋅13681.

It is a cyclic number.

It is not a de Polignac number, because 317899 - 2⁷ = 317771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317839) 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 3 ways as a sum of consecutive naturals, for example, 3654 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (81334).

2³¹⁷⁸⁹⁹ is an apocalyptic number.

317899 is a deficient number, since it is larger than the sum of its proper divisors (7437).

317899 is an equidigital number, since it uses as much as digits as its factorization.

317899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436.

The product of its digits is 13608, while the sum is 37.

The square root of 317899 is about 563.8253275616. The cubic root of 317899 is about 68.2490149106.

The spelling of 317899 in words is "three hundred seventeen thousand, eight hundred ninety-nine".