528369 has 4 divisors (see below), whose sum is σ = 704496. Its totient is φ = 352244.

The previous prime is 528329. The next prime is 528373. The reversal of 528369 is 963825.

It is a happy number.

528369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 528369 - 2¹⁷ = 397297 is a prime.

It is a super-2 number, since 2×528369² = 558347600322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5 + 2¹⁹ + 3⁷ + 8³ + 6⁴ + 9² .

It is a D-number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528369.

It is not an unprimeable number, because it can be changed into a prime (528329) 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, 88059 + ... + 88064.

It is an arithmetic number, because the mean of its divisors is an integer number (176124).

528369 is a Friedman number, since it can be written as 9^6-3/(2/8)^5, using all its digits and the basic arithmetic operations.

2⁵²⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

528369 is a deficient number, since it is larger than the sum of its proper divisors (176127).

528369 is a wasteful number, since it uses less digits than its factorization.

528369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176126.

The product of its digits is 12960, while the sum is 33.

The square root of 528369 is about 726.8899504051. The cubic root of 528369 is about 80.8436245326.

The spelling of 528369 in words is "five hundred twenty-eight thousand, three hundred sixty-nine".