39085 has 4 divisors (see below), whose sum is σ = 46908. Its totient is φ = 31264.

The previous prime is 39079. The next prime is 39089. The reversal of 39085 is 58093.

39085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4489 + 34596 = 67^2 + 186^2 .

It is a cyclic number.

It is not a de Polignac number, because 39085 - 2¹³ = 30893 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 (39089) 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, 3904 + ... + 3913.

It is an arithmetic number, because the mean of its divisors is an integer number (11727).

2³⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

39085 is a deficient number, since it is larger than the sum of its proper divisors (7823).

39085 is an equidigital number, since it uses as much as digits as its factorization.

39085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 39085 is about 197.6992665641. The cubic root of 39085 is about 33.9367335593.

Subtracting from 39085 its sum of digits (25), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 39085 in words is "thirty-nine thousand, eighty-five".