841728 has 48 divisors (see below), whose sum is σ = 2260440. Its totient is φ = 278528.

The previous prime is 841727. The next prime is 841741. The reversal of 841728 is 827148.

It is a tau number, because it is divible by the number of its divisors (48).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 841695 and 841704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6076 + ... + 6212.

2⁸⁴¹⁷²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 841728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130220).

841728 is an abundant number, since it is smaller than the sum of its proper divisors (1418712).

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

841728 is a wasteful number, since it uses less digits than its factorization.

841728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 142 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 841728 is about 917.4573559572. The cubic root of 841728 is about 94.4185350945.

It can be divided in two parts, 84172 and 8, that multiplied together give a palindrome (673376).

The spelling of 841728 in words is "eight hundred forty-one thousand, seven hundred twenty-eight".