528802009 has 4 divisors (see below), whose sum is σ = 532606480. Its totient is φ = 524997540.

The previous prime is 528801967. The next prime is 528802013. The reversal of 528802009 is 900208825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528802009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528802049) 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, 1902027 + ... + 1902304.

It is an arithmetic number, because the mean of its divisors is an integer number (133151620).

Almost surely, 2^528802009 is an apocalyptic number.

It is an amenable number.

528802009 is a deficient number, since it is larger than the sum of its proper divisors (3804471).

528802009 is a wasteful number, since it uses less digits than its factorization.

528802009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804470.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 528802009 is about 22995.6954450175. The cubic root of 528802009 is about 808.6570282678.

The spelling of 528802009 in words is "five hundred twenty-eight million, eight hundred two thousand, nine".