528869945 has 8 divisors (see below), whose sum is σ = 640260936. Its totient is φ = 419351296.

The previous prime is 528869933. The next prime is 528869953. The reversal of 528869945 is 549968825.

It can be written as a sum of positive squares in 4 ways, for example, as 40857664 + 488012281 = 6392^2 + 22091^2 .

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 528869945 - 2¹² = 528865849 is a prime.

It is a Duffinian 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, 467462 + ... + 468591.

It is an arithmetic number, because the mean of its divisors is an integer number (80032617).

Almost surely, 2^528869945 is an apocalyptic number.

It is an amenable number.

528869945 is a deficient number, since it is larger than the sum of its proper divisors (111390991).

528869945 is a wasteful number, since it uses less digits than its factorization.

528869945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936171.

The product of its digits is 6220800, while the sum is 56.

The square root of 528869945 is about 22997.1725435976. The cubic root of 528869945 is about 808.6916565852.

The spelling of 528869945 in words is "five hundred twenty-eight million, eight hundred sixty-nine thousand, nine hundred forty-five".