319859 has 4 divisors (see below), whose sum is σ = 321000. Its totient is φ = 318720.

The previous prime is 319849. The next prime is 319883. The reversal of 319859 is 958913.

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: 958913 = 727 ⋅1319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319859 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319859.

It is not an unprimeable number, because it can be changed into a prime (319819) 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, 179 + ... + 819.

It is an arithmetic number, because the mean of its divisors is an integer number (80250).

2³¹⁹⁸⁵⁹ is an apocalyptic number.

319859 is a deficient number, since it is larger than the sum of its proper divisors (1141).

319859 is an equidigital number, since it uses as much as digits as its factorization.

319859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its digits is 9720, while the sum is 35.

The square root of 319859 is about 565.5607836475. The cubic root of 319859 is about 68.3889902825.

The spelling of 319859 in words is "three hundred nineteen thousand, eight hundred fifty-nine".