528708728 has 16 divisors (see below), whose sum is σ = 1034430480. Its totient is φ = 252860608.

The previous prime is 528708727. The next prime is 528708743. The reversal of 528708728 is 827807825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528708727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436525 + ... + 1436892.

It is an arithmetic number, because the mean of its divisors is an integer number (64651905).

Almost surely, 2^528708728 is an apocalyptic number.

It is an amenable number.

528708728 is a deficient number, since it is larger than the sum of its proper divisors (505721752).

528708728 is a wasteful number, since it uses less digits than its factorization.

528708728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873446 (or 2873442 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 528708728 is about 22993.6671281464. The cubic root of 528708728 is about 808.6094762724.

The spelling of 528708728 in words is "five hundred twenty-eight million, seven hundred eight thousand, seven hundred twenty-eight".