985306285 has 4 divisors (see below), whose sum is σ = 1182367548. Its totient is φ = 788245024.

The previous prime is 985306279. The next prime is 985306297. The reversal of 985306285 is 582603589.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 295771204 + 689535081 = 17198^2 + 26259^2 .

It is a cyclic number.

It is not a de Polignac number, because 985306285 - 2⁹ = 985305773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98530624 + ... + 98530633.

It is an arithmetic number, because the mean of its divisors is an integer number (295591887).

Almost surely, 2^985306285 is an apocalyptic number.

It is an amenable number.

985306285 is a deficient number, since it is larger than the sum of its proper divisors (197061263).

985306285 is a wasteful number, since it uses less digits than its factorization.

985306285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197061262.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 985306285 is about 31389.5887994730. The cubic root of 985306285 is about 995.0779077571.

The spelling of 985306285 in words is "nine hundred eighty-five million, three hundred six thousand, two hundred eighty-five".