339985 has 8 divisors (see below), whose sum is σ = 412776. Its totient is φ = 268800.

The previous prime is 339959. The next prime is 339991. The reversal of 339985 is 589933.

It can be written as a sum of positive squares in 4 ways, for example, as 77841 + 262144 = 279^2 + 512^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-339985 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135 + ... + 835.

It is an arithmetic number, because the mean of its divisors is an integer number (51597).

2³³⁹⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

339985 is a deficient number, since it is larger than the sum of its proper divisors (72791).

339985 is an equidigital number, since it uses as much as digits as its factorization.

339985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its digits is 29160, while the sum is 37.

The square root of 339985 is about 583.0823269488. The cubic root of 339985 is about 69.7942940522.

The spelling of 339985 in words is "three hundred thirty-nine thousand, nine hundred eighty-five".