339391 has 4 divisors (see below), whose sum is σ = 365512. Its totient is φ = 313272.

The previous prime is 339389. The next prime is 339413. The reversal of 339391 is 193933.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 339391 - 2¹ = 339389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13041 + ... + 13066.

It is an arithmetic number, because the mean of its divisors is an integer number (91378).

2³³⁹³⁹¹ is an apocalyptic number.

339391 is a deficient number, since it is larger than the sum of its proper divisors (26121).

339391 is a wasteful number, since it uses less digits than its factorization.

339391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26120.

The product of its digits is 2187, while the sum is 28.

The square root of 339391 is about 582.5727422391. The cubic root of 339391 is about 69.7536236518.

It can be divided in two parts, 33 and 9391, that multiplied together give a palindrome (309903).

The spelling of 339391 in words is "three hundred thirty-nine thousand, three hundred ninety-one".