985613 has 2 divisors, whose sum is σ = 985614. Its totient is φ = 985612.

The previous prime is 985601. The next prime is 985631. The reversal of 985613 is 316589.

Together with next prime (985631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896809 + 88804 = 947^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 985613 - 2⁴ = 985597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 985613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492806 + 492807.

It is an arithmetic number, because the mean of its divisors is an integer number (492807).

2⁹⁸⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

985613 is a deficient number, since it is larger than the sum of its proper divisors (1).

985613 is an equidigital number, since it uses as much as digits as its factorization.

985613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 985613 is about 992.7804389693. The cubic root of 985613 is about 99.5181149311.

The spelling of 985613 in words is "nine hundred eighty-five thousand, six hundred thirteen".