528830999 has 4 divisors (see below), whose sum is σ = 528993936. Its totient is φ = 528668064.

The previous prime is 528830989. The next prime is 528831007. The reversal of 528830999 is 999038825.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 528830999 - 2²⁸ = 260395543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528830999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528830909) 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, 76499 + ... + 83124.

It is an arithmetic number, because the mean of its divisors is an integer number (132248484).

Almost surely, 2^528830999 is an apocalyptic number.

528830999 is a deficient number, since it is larger than the sum of its proper divisors (162937).

528830999 is a wasteful number, since it uses less digits than its factorization.

528830999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162936.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The square root of 528830999 is about 22996.3257717401. The cubic root of 528830999 is about 808.6718054046.

The spelling of 528830999 in words is "five hundred twenty-eight million, eight hundred thirty thousand, nine hundred ninety-nine".