528243977 has 2 divisors, whose sum is σ = 528243978. Its totient is φ = 528243976.

The previous prime is 528243929. The next prime is 528243983. The reversal of 528243977 is 779342825.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407595721 + 120648256 = 20189^2 + 10984^2 .

It is a cyclic number.

It is not a de Polignac number, because 528243977 - 2⁸ = 528243721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (528243997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264121988 + 264121989.

It is an arithmetic number, because the mean of its divisors is an integer number (264121989).

Almost surely, 2^528243977 is an apocalyptic number.

It is an amenable number.

528243977 is a deficient number, since it is larger than the sum of its proper divisors (1).

528243977 is an equidigital number, since it uses as much as digits as its factorization.

528243977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 528243977 is about 22983.5588410498. The cubic root of 528243977 is about 808.3724760677.

The spelling of 528243977 in words is "five hundred twenty-eight million, two hundred forty-three thousand, nine hundred seventy-seven".