985635 has 48 divisors (see below), whose sum is σ = 2052000. Its totient is φ = 447552.

The previous prime is 985631. The next prime is 985639. The reversal of 985635 is 536589.

985635 is a `hidden beast` number, since 98 + 563 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (985631) and next prime (985639).

It is not a de Polignac number, because 985635 - 2² = 985631 is a prime.

985635 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 985635.

It is not an unprimeable number, because it can be changed into a prime (985631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6541 + ... + 6689.

It is an arithmetic number, because the mean of its divisors is an integer number (42750).

2⁹⁸⁵⁶³⁵ is an apocalyptic number.

985635 is an abundant number, since it is smaller than the sum of its proper divisors (1066365).

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

985635 is a wasteful number, since it uses less digits than its factorization.

985635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 164 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 985635 is about 992.7915189001. The cubic root of 985635 is about 99.5188553780.

The spelling of 985635 in words is "nine hundred eighty-five thousand, six hundred thirty-five".