319947 has 4 divisors (see below), whose sum is σ = 426600. Its totient is φ = 213296.

The previous prime is 319937. The next prime is 319967. The reversal of 319947 is 749913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749913 = 3 ⋅249971.

It is a cyclic number.

It is not a de Polignac number, because 319947 - 2⁴ = 319931 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 319947.

It is not an unprimeable number, because it can be changed into a prime (319927) 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, 53322 + ... + 53327.

It is an arithmetic number, because the mean of its divisors is an integer number (106650).

2³¹⁹⁹⁴⁷ is an apocalyptic number.

319947 is a deficient number, since it is larger than the sum of its proper divisors (106653).

319947 is a wasteful number, since it uses less digits than its factorization.

319947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106652.

The product of its digits is 6804, while the sum is 33.

The square root of 319947 is about 565.6385771851. The cubic root of 319947 is about 68.3952614617.

The spelling of 319947 in words is "three hundred nineteen thousand, nine hundred forty-seven".