528398 has 8 divisors (see below), whose sum is σ = 853608. Its totient is φ = 243864.

The previous prime is 528391. The next prime is 528401. The reversal of 528398 is 893825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528398.

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

528398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 10136 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (106701).

2⁵²⁸³⁹⁸ is an apocalyptic number.

528398 is a deficient number, since it is larger than the sum of its proper divisors (325210).

528398 is a wasteful number, since it uses less digits than its factorization.

528398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20338.

The product of its digits is 17280, while the sum is 35.

The square root of 528398 is about 726.9098981304. The cubic root of 528398 is about 80.8451035635.

The spelling of 528398 in words is "five hundred twenty-eight thousand, three hundred ninety-eight".