528218969 has 2 divisors, whose sum is σ = 528218970. Its totient is φ = 528218968.

The previous prime is 528218953. The next prime is 528218983. The reversal of 528218969 is 969812825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461175625 + 67043344 = 21475^2 + 8188^2 .

It is a cyclic number.

It is not a de Polignac number, because 528218969 - 2⁴ = 528218953 is a prime.

It is a super-2 number, since 2×528218969² = 558030558422845922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (528218939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264109484 + 264109485.

It is an arithmetic number, because the mean of its divisors is an integer number (264109485).

Almost surely, 2^528218969 is an apocalyptic number.

It is an amenable number.

528218969 is a deficient number, since it is larger than the sum of its proper divisors (1).

528218969 is an equidigital number, since it uses as much as digits as its factorization.

528218969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 50.

The square root of 528218969 is about 22983.0147935383. The cubic root of 528218969 is about 808.3597192743.

The spelling of 528218969 in words is "five hundred twenty-eight million, two hundred eighteen thousand, nine hundred sixty-nine".