528257947 has 16 divisors (see below), whose sum is σ = 609935872. Its totient is φ = 448156800.

The previous prime is 528257941. The next prime is 528257953. The reversal of 528257947 is 749752825.

It is an interprime number because it is at equal distance from previous prime (528257941) and next prime (528257953).

It is not a de Polignac number, because 528257947 - 2¹¹ = 528255899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 528257947.

It is not an unprimeable number, because it can be changed into a prime (528257941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355468 + ... + 356950.

It is an arithmetic number, because the mean of its divisors is an integer number (38120992).

Almost surely, 2^528257947 is an apocalyptic number.

528257947 is a deficient number, since it is larger than the sum of its proper divisors (81677925).

528257947 is a wasteful number, since it uses less digits than its factorization.

528257947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978.

The product of its digits is 1411200, while the sum is 49.

The square root of 528257947 is about 22983.8627519397. The cubic root of 528257947 is about 808.3796021082.

The spelling of 528257947 in words is "five hundred twenty-eight million, two hundred fifty-seven thousand, nine hundred forty-seven".