528723 has 12 divisors (see below), whose sum is σ = 822640. Its totient is φ = 325296.

The previous prime is 528719. The next prime is 528763. The reversal of 528723 is 327825.

It is not a de Polignac number, because 528723 - 2² = 528719 is a prime.

It is a d-powerful number, because it can be written as 5² + 2¹² + 7 + 8² + 2¹⁹ + 3⁵ .

It is not an unprimeable number, because it can be changed into a prime (528763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2143 + ... + 2376.

2⁵²⁸⁷²³ is an apocalyptic number.

528723 is a deficient number, since it is larger than the sum of its proper divisors (293917).

528723 is a wasteful number, since it uses less digits than its factorization.

528723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538 (or 4535 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 528723 is about 727.1334127930. The cubic root of 528723 is about 80.8616752094.

The spelling of 528723 in words is "five hundred twenty-eight thousand, seven hundred twenty-three".