339881 has 4 divisors (see below), whose sum is σ = 359892. Its totient is φ = 319872.

The previous prime is 339863. The next prime is 339887. The reversal of 339881 is 188933.

339881 = 83² + 84² + ... + 116².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 105625 = 484^2 + 325^2 .

It is not a de Polignac number, because 339881 - 2⁶ = 339817 is a prime.

It is a super-2 number, since 2×339881² = 231038188322, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 339881.

It is not an unprimeable number, because it can be changed into a prime (339887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9980 + ... + 10013.

It is an arithmetic number, because the mean of its divisors is an integer number (89973).

2³³⁹⁸⁸¹ is an apocalyptic number.

It is an amenable number.

339881 is a deficient number, since it is larger than the sum of its proper divisors (20011).

339881 is a wasteful number, since it uses less digits than its factorization.

339881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010.

The product of its digits is 5184, while the sum is 32.

The square root of 339881 is about 582.9931388962. The cubic root of 339881 is about 69.7871767315.

The spelling of 339881 in words is "three hundred thirty-nine thousand, eight hundred eighty-one".