985518 has 12 divisors (see below), whose sum is σ = 2135328. Its totient is φ = 328500.

The previous prime is 985499. The next prime is 985519. The reversal of 985518 is 815589.

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 985518.

It is not an unprimeable number, because it can be changed into a prime (985519) 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 5 ways as a sum of consecutive naturals, for example, 27358 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (177944).

2⁹⁸⁵⁵¹⁸ is an apocalyptic number.

985518 is an abundant number, since it is smaller than the sum of its proper divisors (1149810).

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

985518 is a wasteful number, since it uses less digits than its factorization.

985518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54759 (or 54756 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 985518 is about 992.7325923933. The cubic root of 985518 is about 99.5149174203.

The spelling of 985518 in words is "nine hundred eighty-five thousand, five hundred eighteen".