728525535 has 8 divisors (see below), whose sum is σ = 1165640880. Its totient is φ = 388546944.

The previous prime is 728525519. The next prime is 728525557. The reversal of 728525535 is 535525827.

It is a happy number.

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

It is not a de Polignac number, because 728525535 - 2⁴ = 728525519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24284170 + ... + 24284199.

It is an arithmetic number, because the mean of its divisors is an integer number (145705110).

Almost surely, 2^728525535 is an apocalyptic number.

728525535 is a deficient number, since it is larger than the sum of its proper divisors (437115345).

728525535 is a wasteful number, since it uses less digits than its factorization.

728525535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48568377.

The product of its digits is 420000, while the sum is 42.

The square root of 728525535 is about 26991.2121810044. The cubic root of 728525535 is about 899.8047045385.

It can be divided in two parts, 72852 and 5535, that added together give a palindrome (78387).

The spelling of 728525535 in words is "seven hundred twenty-eight million, five hundred twenty-five thousand, five hundred thirty-five".