985539 has 4 divisors (see below), whose sum is σ = 1314056. Its totient is φ = 657024.

The previous prime is 985531. The next prime is 985547. The reversal of 985539 is 935589.

985539 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 is an interprime number because it is at equal distance from previous prime (985531) and next prime (985547).

It is not a de Polignac number, because 985539 - 2³ = 985531 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 985497 and 985506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985531) 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, 164254 + ... + 164259.

It is an arithmetic number, because the mean of its divisors is an integer number (328514).

2⁹⁸⁵⁵³⁹ is an apocalyptic number.

985539 is a deficient number, since it is larger than the sum of its proper divisors (328517).

985539 is a wasteful number, since it uses less digits than its factorization.

985539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328516.

The product of its digits is 48600, while the sum is 39.

The square root of 985539 is about 992.7431692034. The cubic root of 985539 is about 99.5156242562.

The spelling of 985539 in words is "nine hundred eighty-five thousand, five hundred thirty-nine".