439085 has 8 divisors (see below), whose sum is σ = 531576. Its totient is φ = 348160.

The previous prime is 439081. The next prime is 439123. The reversal of 439085 is 580934.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 299209 = 374^2 + 547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 439085 - 2² = 439081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439081) 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 7 ways as a sum of consecutive naturals, for example, 365 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (66447).

2⁴³⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

439085 is a deficient number, since it is larger than the sum of its proper divisors (92491).

439085 is a wasteful number, since it uses less digits than its factorization.

439085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 439085 is about 662.6348919277. The cubic root of 439085 is about 76.0062898765.

The spelling of 439085 in words is "four hundred thirty-nine thousand, eighty-five".