319693 has 4 divisors (see below), whose sum is σ = 348768. Its totient is φ = 290620.

The previous prime is 319691. The next prime is 319699. The reversal of 319693 is 396913.

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, and also an emirpimes, since its reverse is a distinct semiprime: 396913 = 11 ⋅36083.

It is not a de Polignac number, because 319693 - 2¹ = 319691 is a prime.

It is a super-2 number, since 2×319693² = 204407228498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319691) 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, 14521 + ... + 14542.

It is an arithmetic number, because the mean of its divisors is an integer number (87192).

2³¹⁹⁶⁹³ is an apocalyptic number.

It is an amenable number.

319693 is a deficient number, since it is larger than the sum of its proper divisors (29075).

319693 is a wasteful number, since it uses less digits than its factorization.

319693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29074.

The product of its digits is 4374, while the sum is 31.

The square root of 319693 is about 565.4140076086. The cubic root of 319693 is about 68.3771574261.

The spelling of 319693 in words is "three hundred nineteen thousand, six hundred ninety-three".