841806 has 64 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 224640.

The previous prime is 841801. The next prime is 841849. The reversal of 841806 is 608148.

841806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 841806.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 841806.

It is not an unprimeable number, because it can be changed into a prime (841801) by changing a digit.

841806 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 31 ways as a sum of consecutive naturals, for example, 6361 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (35640).

2⁸⁴¹⁸⁰⁶ is an apocalyptic number.

It is a pronic number, being equal to 917×918.

It is a practical number, because each smaller number is the sum of distinct divisors of 841806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140480).

841806 is an abundant number, since it is smaller than the sum of its proper divisors (1439154).

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

841806 is a wasteful number, since it uses less digits than its factorization.

841806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 841806 is about 917.4998637602. The cubic root of 841806 is about 94.4214514833.

It can be divided in two parts, 8 and 41806, that added together give a palindrome (41814).

The spelling of 841806 in words is "eight hundred forty-one thousand, eight hundred six".