728472 has 32 divisors (see below), whose sum is σ = 1843200. Its totient is φ = 239904.

The previous prime is 728471. The next prime is 728477. The reversal of 728472 is 274827.

728472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929 + ... + 3167.

It is an arithmetic number, because the mean of its divisors is an integer number (57600).

2⁷²⁸⁴⁷² is an apocalyptic number.

It is an amenable number.

728472 is an abundant number, since it is smaller than the sum of its proper divisors (1114728).

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

728472 is a wasteful number, since it uses less digits than its factorization.

728472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 371 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 728472 is about 853.5057117559. The cubic root of 728472 is about 89.9782663570.

The spelling of 728472 in words is "seven hundred twenty-eight thousand, four hundred seventy-two".