528289 has 2 divisors, whose sum is σ = 528290. Its totient is φ = 528288.

The previous prime is 528263. The next prime is 528299. The reversal of 528289 is 982825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 242064 = 535^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 528289 - 2¹⁷ = 397217 is a prime.

It is not a weakly prime, because it can be changed into another prime (528299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264144 + 264145.

It is an arithmetic number, because the mean of its divisors is an integer number (264145).

2⁵²⁸²⁸⁹ is an apocalyptic number.

It is an amenable number.

528289 is a deficient number, since it is larger than the sum of its proper divisors (1).

528289 is an equidigital number, since it uses as much as digits as its factorization.

528289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 528289 is about 726.8349193593. The cubic root of 528289 is about 80.8395441668.

The spelling of 528289 in words is "five hundred twenty-eight thousand, two hundred eighty-nine".