842485 has 8 divisors (see below), whose sum is σ = 1155456. Its totient is φ = 577680.

The previous prime is 842483. The next prime is 842489. The reversal of 842485 is 584248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 842485 - 2¹ = 842483 is a prime.

It is a Duffinian number.

842485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12001 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (144432).

2⁸⁴²⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

842485 is a deficient number, since it is larger than the sum of its proper divisors (312971).

842485 is a wasteful number, since it uses less digits than its factorization.

842485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24083.

The product of its digits is 10240, while the sum is 31.

The square root of 842485 is about 917.8698164773. The cubic root of 842485 is about 94.4468314147.

The spelling of 842485 in words is "eight hundred forty-two thousand, four hundred eighty-five".