842646 has 16 divisors (see below), whose sum is σ = 1926144. Its totient is φ = 240744.

The previous prime is 842627. The next prime is 842657. The reversal of 842646 is 646248.

It is a congruent number.

It is an unprimeable number.

842646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9990 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (120384).

2⁸⁴²⁶⁴⁶ is an apocalyptic number.

842646 is an abundant number, since it is smaller than the sum of its proper divisors (1083498).

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

842646 is a wasteful number, since it uses less digits than its factorization.

842646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075.

The product of its digits is 9216, while the sum is 30.

The square root of 842646 is about 917.9575153568. The cubic root of 842646 is about 94.4528473364.

The spelling of 842646 in words is "eight hundred forty-two thousand, six hundred forty-six".