985239 has 6 divisors (see below), whose sum is σ = 1423136. Its totient is φ = 656820.

The previous prime is 985219. The next prime is 985253. The reversal of 985239 is 932589.

985239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 985239 - 2¹³ = 977047 is a prime.

It is a Duffinian number.

985239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54727 + ... + 54744.

2⁹⁸⁵²³⁹ is an apocalyptic number.

985239 is a deficient number, since it is larger than the sum of its proper divisors (437897).

985239 is a wasteful number, since it uses less digits than its factorization.

985239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109477 (or 109474 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 985239 is about 992.5920612215. The cubic root of 985239 is about 99.5055256479.

Subtracting from 985239 its reverse (932589), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 985239 in words is "nine hundred eighty-five thousand, two hundred thirty-nine".