728412 has 24 divisors (see below), whose sum is σ = 1719312. Its totient is φ = 240000.

The previous prime is 728383. The next prime is 728417. The reversal of 728412 is 214827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728417) by changing a digit.

728412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (71638).

2⁷²⁸⁴¹² is an apocalyptic number.

It is an amenable number.

728412 is an abundant number, since it is smaller than the sum of its proper divisors (990900).

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

728412 is a wasteful number, since it uses less digits than its factorization.

728412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 707 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 728412 is about 853.4705618825. The cubic root of 728412 is about 89.9757959604.

The spelling of 728412 in words is "seven hundred twenty-eight thousand, four hundred twelve".