319493743 has 4 divisors (see below), whose sum is σ = 322595728. Its totient is φ = 316391760.

The previous prime is 319493729. The next prime is 319493747. The reversal of 319493743 is 347394913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347394913 = 53 ⋅6554621.

It is a cyclic number.

It is not a de Polignac number, because 319493743 - 2⁵ = 319493711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319493743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319493747) 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, 1550838 + ... + 1551043.

It is an arithmetic number, because the mean of its divisors is an integer number (80648932).

Almost surely, 2^319493743 is an apocalyptic number.

319493743 is a deficient number, since it is larger than the sum of its proper divisors (3101985).

319493743 is a wasteful number, since it uses less digits than its factorization.

319493743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101984.

The product of its digits is 244944, while the sum is 43.

The square root of 319493743 is about 17874.3879056039. The cubic root of 319493743 is about 683.6294852475.

The spelling of 319493743 in words is "three hundred nineteen million, four hundred ninety-three thousand, seven hundred forty-three".