985005 has 48 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 434304.

The previous prime is 985003. The next prime is 985007. The reversal of 985005 is 500589.

It is an interprime number because it is at equal distance from previous prime (985003) and next prime (985007).

It is not a de Polignac number, because 985005 - 2¹ = 985003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 985005.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985005.

It is not an unprimeable number, because it can be changed into a prime (985003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16666 + ... + 16724.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁹⁸⁵⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

985005 is an abundant number, since it is smaller than the sum of its proper divisors (1036755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985005 is a wasteful number, since it uses less digits than its factorization.

985005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 985005 is about 992.4741810244. The cubic root of 985005 is about 99.4976473102.

Subtracting from 985005 its reverse (500589), we obtain a square (484416 = 696²).

The spelling of 985005 in words is "nine hundred eighty-five thousand, five".