528729216 has 32 divisors (see below), whose sum is σ = 1404438000. Its totient is φ = 176242944.

The previous prime is 528729197. The next prime is 528729217. The reversal of 528729216 is 612927825.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (528729217) 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, 688066 + ... + 688833.

Almost surely, 2^528729216 is an apocalyptic number.

It is an amenable number.

528729216 is an abundant number, since it is smaller than the sum of its proper divisors (875708784).

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

528729216 is a wasteful number, since it uses less digits than its factorization.

528729216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376916 (or 1376904 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 528729216 is about 22994.1126378036. The cubic root of 528729216 is about 808.6199209502.

The spelling of 528729216 in words is "five hundred twenty-eight million, seven hundred twenty-nine thousand, two hundred sixteen".