319983 has 4 divisors (see below), whose sum is σ = 426648. Its totient is φ = 213320.

The previous prime is 319981. The next prime is 319993. The reversal of 319983 is 389913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389913 = 3 ⋅129971.

It is a cyclic number.

It is not a de Polignac number, because 319983 - 2¹ = 319981 is a prime.

It is a super-3 number, since 3×319983³ = 98288333632305261, which contains 333 as substring.

It is a D-number.

319983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319981) 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, 53328 + ... + 53333.

It is an arithmetic number, because the mean of its divisors is an integer number (106662).

2³¹⁹⁹⁸³ is an apocalyptic number.

319983 is a deficient number, since it is larger than the sum of its proper divisors (106665).

319983 is a wasteful number, since it uses less digits than its factorization.

319983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106664.

The product of its digits is 5832, while the sum is 33.

The square root of 319983 is about 565.6703987306. The cubic root of 319983 is about 68.3978266127.

The spelling of 319983 in words is "three hundred nineteen thousand, nine hundred eighty-three".