319393 has 4 divisors (see below), whose sum is σ = 329728. Its totient is φ = 309060.

The previous prime is 319391. The next prime is 319399. The reversal of 319393 is 393913.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 319393 - 2¹ = 319391 is a prime.

It is a Duffinian number.

319393 is a modest number, since divided by 9393 gives 31 as remainder.

It is not an unprimeable number, because it can be changed into a prime (319391) 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, 5121 + ... + 5182.

It is an arithmetic number, because the mean of its divisors is an integer number (82432).

2³¹⁹³⁹³ is an apocalyptic number.

It is an amenable number.

319393 is a deficient number, since it is larger than the sum of its proper divisors (10335).

319393 is a wasteful number, since it uses less digits than its factorization.

319393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334.

The product of its digits is 2187, while the sum is 28.

The square root of 319393 is about 565.1486530109. The cubic root of 319393 is about 68.3557623511.

Subtracting from 319393 its product of digits (2187), we obtain a triangular number (317206 = T₇₉₆).

The spelling of 319393 in words is "three hundred nineteen thousand, three hundred ninety-three".