842985 has 48 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 374400.

The previous prime is 842981. The next prime is 842987. The reversal of 842985 is 589248.

It is not a de Polignac number, because 842985 - 2² = 842981 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842985.

It is not an unprimeable number, because it can be changed into a prime (842981) 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, 6370 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2⁸⁴²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

842985 is an abundant number, since it is smaller than the sum of its proper divisors (886743).

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

842985 is a wasteful number, since it uses less digits than its factorization.

842985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 163 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 842985 is about 918.1421458576. The cubic root of 842985 is about 94.4655118964.

The spelling of 842985 in words is "eight hundred forty-two thousand, nine hundred eighty-five".