728475285 has 8 divisors (see below), whose sum is σ = 1165560480. Its totient is φ = 388520144.

The previous prime is 728475281. The next prime is 728475289. The reversal of 728475285 is 582574827.

It is an interprime number because it is at equal distance from previous prime (728475281) and next prime (728475289).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728475285 - 2² = 728475281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728475281) by changing a digit.

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, 24282495 + ... + 24282524.

It is an arithmetic number, because the mean of its divisors is an integer number (145695060).

Almost surely, 2^728475285 is an apocalyptic number.

It is an amenable number.

728475285 is a deficient number, since it is larger than the sum of its proper divisors (437085195).

728475285 is a wasteful number, since it uses less digits than its factorization.

728475285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48565027.

The product of its digits is 1254400, while the sum is 48.

The square root of 728475285 is about 26990.2813064258. The cubic root of 728475285 is about 899.7840160731.

The spelling of 728475285 in words is "seven hundred twenty-eight million, four hundred seventy-five thousand, two hundred eighty-five".