339431 has 4 divisors (see below), whose sum is σ = 341352. Its totient is φ = 337512.

The previous prime is 339413. The next prime is 339433. The reversal of 339431 is 134933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134933 = 59 ⋅2287.

It is a cyclic number.

It is not a de Polignac number, because 339431 - 2¹⁰ = 338407 is a prime.

It is a super-2 number, since 2×339431² = 230426807522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 339397 and 339406.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 339431.

It is not an unprimeable number, because it can be changed into a prime (339433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665 + ... + 1058.

It is an arithmetic number, because the mean of its divisors is an integer number (85338).

2³³⁹⁴³¹ is an apocalyptic number.

339431 is a deficient number, since it is larger than the sum of its proper divisors (1921).

339431 is a wasteful number, since it uses less digits than its factorization.

339431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its digits is 972, while the sum is 23.

The square root of 339431 is about 582.6070717044. The cubic root of 339431 is about 69.7563638888.

The spelling of 339431 in words is "three hundred thirty-nine thousand, four hundred thirty-one".