528397 has 4 divisors (see below), whose sum is σ = 542716. Its totient is φ = 514080.

The previous prime is 528391. The next prime is 528401. The reversal of 528397 is 793825.

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

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 346921 = 426^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 528397 - 2¹⁵ = 495629 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7104 + ... + 7177.

It is an arithmetic number, because the mean of its divisors is an integer number (135679).

2⁵²⁸³⁹⁷ is an apocalyptic number.

It is an amenable number.

528397 is a deficient number, since it is larger than the sum of its proper divisors (14319).

528397 is a wasteful number, since it uses less digits than its factorization.

528397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14318.

The product of its digits is 15120, while the sum is 34.

The square root of 528397 is about 726.9092102870. The cubic root of 528397 is about 80.8450525633.

The spelling of 528397 in words is "five hundred twenty-eight thousand, three hundred ninety-seven".