168439 has 4 divisors (see below), whose sum is σ = 169560. Its totient is φ = 167320.

The previous prime is 168433. The next prime is 168449. The reversal of 168439 is 934861.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 168439 - 2¹⁵ = 135671 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 168439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168433) 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, 292 + ... + 649.

It is an arithmetic number, because the mean of its divisors is an integer number (42390).

2¹⁶⁸⁴³⁹ is an apocalyptic number.

168439 is a deficient number, since it is larger than the sum of its proper divisors (1121).

168439 is an equidigital number, since it uses as much as digits as its factorization.

168439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its digits is 5184, while the sum is 31.

The square root of 168439 is about 410.4132064152. The cubic root of 168439 is about 55.2265039354.

The spelling of 168439 in words is "one hundred sixty-eight thousand, four hundred thirty-nine".