985517 has 12 divisors (see below), whose sum is σ = 1113084. Its totient is φ = 866880.

The previous prime is 985499. The next prime is 985519. The reversal of 985517 is 715589.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 894916 = 301^2 + 946^2 .

It is a de Polignac number, because none of the positive numbers 2^k-985517 is a prime.

It is a Duffinian number.

Its product of digits (12600) is a multiple of the sum of its prime factors (140).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 22898 + ... + 22940.

It is an arithmetic number, because the mean of its divisors is an integer number (92757).

2⁹⁸⁵⁵¹⁷ is an apocalyptic number.

It is an amenable number.

985517 is a deficient number, since it is larger than the sum of its proper divisors (127567).

985517 is a wasteful number, since it uses less digits than its factorization.

985517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 97 counting only the distinct ones).

The product of its digits is 12600, while the sum is 35.

The square root of 985517 is about 992.7320887329. The cubic root of 985517 is about 99.5148837612.

The spelling of 985517 in words is "nine hundred eighty-five thousand, five hundred seventeen".