985635287 has 16 divisors (see below), whose sum is σ = 1214556672. Its totient is φ = 778900320.

The previous prime is 985635263. The next prime is 985635289. The reversal of 985635287 is 782536589.

It is a cyclic number.

It is not a de Polignac number, because 985635287 - 2¹⁶ = 985569751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985635289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74612 + ... + 86822.

It is an arithmetic number, because the mean of its divisors is an integer number (75909792).

Almost surely, 2^985635287 is an apocalyptic number.

985635287 is a deficient number, since it is larger than the sum of its proper divisors (228921385).

985635287 is a wasteful number, since it uses less digits than its factorization.

985635287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118.

The product of its digits is 3628800, while the sum is 53.

The square root of 985635287 is about 31394.8289850415. The cubic root of 985635287 is about 995.1886503742.

The spelling of 985635287 in words is "nine hundred eighty-five million, six hundred thirty-five thousand, two hundred eighty-seven".