728576 has 20 divisors (see below), whose sum is σ = 1456752. Its totient is φ = 364032.

The previous prime is 728573. The next prime is 728579. The reversal of 728576 is 675827.

It is an interprime number because it is at equal distance from previous prime (728573) and next prime (728579).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200 + ... + 1223.

2⁷²⁸⁵⁷⁶ is an apocalyptic number.

It is an amenable number.

728576 is a deficient number, since it is larger than the sum of its proper divisors (728176).

728576 is an equidigital number, since it uses as much as digits as its factorization.

728576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1425 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 728576 is about 853.5666347743. The cubic root of 728576 is about 89.9825480564.

The spelling of 728576 in words is "seven hundred twenty-eight thousand, five hundred seventy-six".