439081 has 2 divisors, whose sum is σ = 439082. Its totient is φ = 439080.

The previous prime is 439063. The next prime is 439123. The reversal of 439081 is 180934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435600 + 3481 = 660^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 439081 - 2⁷ = 438953 is a prime.

It is a super-2 number, since 2×439081² = 385584249122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (439381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219540 + 219541.

It is an arithmetic number, because the mean of its divisors is an integer number (219541).

2⁴³⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

439081 is a deficient number, since it is larger than the sum of its proper divisors (1).

439081 is an equidigital number, since it uses as much as digits as its factorization.

439081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 439081 is about 662.6318736674. The cubic root of 439081 is about 76.0060590737.

The spelling of 439081 in words is "four hundred thirty-nine thousand, eighty-one".