985939 has 4 divisors (see below), whose sum is σ = 1012624. Its totient is φ = 959256.

The previous prime is 985937. The next prime is 985951. The reversal of 985939 is 939589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939589 = 7 ⋅134227.

It is a cyclic number.

It is not a de Polignac number, because 985939 - 2¹ = 985937 is a prime.

It is a Duffinian number.

985939 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 985895 and 985904.

It is not an unprimeable number, because it can be changed into a prime (985937) 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 3 ways as a sum of consecutive naturals, for example, 13287 + ... + 13360.

It is an arithmetic number, because the mean of its divisors is an integer number (253156).

2⁹⁸⁵⁹³⁹ is an apocalyptic number.

985939 is a deficient number, since it is larger than the sum of its proper divisors (26685).

985939 is a wasteful number, since it uses less digits than its factorization.

985939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26684.

The product of its digits is 87480, while the sum is 43.

The square root of 985939 is about 992.9446107412. The cubic root of 985939 is about 99.5290858799.

The spelling of 985939 in words is "nine hundred eighty-five thousand, nine hundred thirty-nine".