319889 has 8 divisors (see below), whose sum is σ = 350208. Its totient is φ = 290880.

The previous prime is 319883. The next prime is 319897. The reversal of 319889 is 988913.

319889 = 80² + 81² + ... + 113².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224 + ... + 830.

It is an arithmetic number, because the mean of its divisors is an integer number (43776).

2³¹⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

319889 is a deficient number, since it is larger than the sum of its proper divisors (30319).

319889 is a wasteful number, since it uses less digits than its factorization.

319889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its digits is 15552, while the sum is 38.

The square root of 319889 is about 565.5873053738. The cubic root of 319889 is about 68.3911283137.

The spelling of 319889 in words is "three hundred nineteen thousand, eight hundred eighty-nine".