728572 has 12 divisors (see below), whose sum is σ = 1373176. Its totient is φ = 336240.

The previous prime is 728561. The next prime is 728573. The reversal of 728572 is 275827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728573) by changing a digit.

728572 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6954 + ... + 7057.

2⁷²⁸⁵⁷² is an apocalyptic number.

It is an amenable number.

728572 is a deficient number, since it is larger than the sum of its proper divisors (644604).

728572 is a wasteful number, since it uses less digits than its factorization.

728572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14028 (or 14026 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 728572 is about 853.5642916617. The cubic root of 728572 is about 89.9823833832.

The spelling of 728572 in words is "seven hundred twenty-eight thousand, five hundred seventy-two".