728370 has 24 divisors (see below), whose sum is σ = 1893996. Its totient is φ = 194208.

The previous prime is 728369. The next prime is 728381. The reversal of 728370 is 73827.

728370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 720801 + 7569 = 849^2 + 87^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3957 + ... + 4136.

2⁷²⁸³⁷⁰ is an apocalyptic number.

728370 is an abundant number, since it is smaller than the sum of its proper divisors (1165626).

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

728370 is a wasteful number, since it uses less digits than its factorization.

728370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 728370 is about 853.4459561097. The cubic root of 728370 is about 89.9740666021.

The spelling of 728370 in words is "seven hundred twenty-eight thousand, three hundred seventy".