728845375 has 8 divisors (see below), whose sum is σ = 909599184. Its totient is φ = 583076200.

The previous prime is 728845333. The next prime is 728845387. The reversal of 728845375 is 573548827.

It is not a de Polignac number, because 728845375 - 2¹⁵ = 728812607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2915257 + ... + 2915506.

It is an arithmetic number, because the mean of its divisors is an integer number (113699898).

Almost surely, 2^728845375 is an apocalyptic number.

728845375 is a deficient number, since it is larger than the sum of its proper divisors (180753809).

728845375 is an equidigital number, since it uses as much as digits as its factorization.

728845375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830778 (or 5830768 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 49.

The square root of 728845375 is about 26997.1364222208. The cubic root of 728845375 is about 899.9363638133.

The spelling of 728845375 in words is "seven hundred twenty-eight million, eight hundred forty-five thousand, three hundred seventy-five".