339861 has 4 divisors (see below), whose sum is σ = 453152. Its totient is φ = 226572.

The previous prime is 339841. The next prime is 339863. The reversal of 339861 is 168933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168933 = 3 ⋅56311.

It is not a de Polignac number, because 339861 - 2¹⁵ = 307093 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339863) 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, 56641 + ... + 56646.

It is an arithmetic number, because the mean of its divisors is an integer number (113288).

2³³⁹⁸⁶¹ is an apocalyptic number.

It is an amenable number.

339861 is a deficient number, since it is larger than the sum of its proper divisors (113291).

339861 is a wasteful number, since it uses less digits than its factorization.

339861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113290.

The product of its digits is 3888, while the sum is 30.

The square root of 339861 is about 582.9759857833. The cubic root of 339861 is about 69.7858078496.

The spelling of 339861 in words is "three hundred thirty-nine thousand, eight hundred sixty-one".