319623 has 4 divisors (see below), whose sum is σ = 426168. Its totient is φ = 213080.

The previous prime is 319607. The next prime is 319639. The reversal of 319623 is 326913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326913 = 3 ⋅108971.

It is an interprime number because it is at equal distance from previous prime (319607) and next prime (319639).

It is a cyclic number.

It is not a de Polignac number, because 319623 - 2⁴ = 319607 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 319593 and 319602.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319623.

It is not an unprimeable number, because it can be changed into a prime (319673) 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, 53268 + ... + 53273.

It is an arithmetic number, because the mean of its divisors is an integer number (106542).

2³¹⁹⁶²³ is an apocalyptic number.

319623 is a deficient number, since it is larger than the sum of its proper divisors (106545).

319623 is a wasteful number, since it uses less digits than its factorization.

319623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106544.

The product of its digits is 972, while the sum is 24.

The square root of 319623 is about 565.3521026758. The cubic root of 319623 is about 68.3721664395.

The spelling of 319623 in words is "three hundred nineteen thousand, six hundred twenty-three".