528447 has 16 divisors (see below), whose sum is σ = 757760. Its totient is φ = 326592.

The previous prime is 528433. The next prime is 528469. The reversal of 528447 is 744825.

It is not a de Polignac number, because 528447 - 2⁶ = 528383 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 528447.

It is not an unprimeable number, because it can be changed into a prime (528487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4098 + ... + 4224.

It is an arithmetic number, because the mean of its divisors is an integer number (47360).

2⁵²⁸⁴⁴⁷ is an apocalyptic number.

528447 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

528447 is a deficient number, since it is larger than the sum of its proper divisors (229313).

528447 is a wasteful number, since it uses less digits than its factorization.

528447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its digits is 8960, while the sum is 30.

The square root of 528447 is about 726.9436016638. The cubic root of 528447 is about 80.8476024927.

The spelling of 528447 in words is "five hundred twenty-eight thousand, four hundred forty-seven".