528857812 has 24 divisors (see below), whose sum is σ = 1065443904. Its totient is φ = 224997312.

The previous prime is 528857809. The next prime is 528857821. The reversal of 528857812 is 218758825.

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, 65098 + ... + 72769.

It is an arithmetic number, because the mean of its divisors is an integer number (44393496).

Almost surely, 2^528857812 is an apocalyptic number.

It is an amenable number.

528857812 is an abundant number, since it is smaller than the sum of its proper divisors (536586092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

528857812 is a wasteful number, since it uses less digits than its factorization.

528857812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138015 (or 138013 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The square root of 528857812 is about 22996.9087487862. The cubic root of 528857812 is about 808.6854723737.

The spelling of 528857812 in words is "five hundred twenty-eight million, eight hundred fifty-seven thousand, eight hundred twelve".