528231793 has 2 divisors, whose sum is σ = 528231794. Its totient is φ = 528231792.

The previous prime is 528231791. The next prime is 528231811. The reversal of 528231793 is 397132825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494973504 + 33258289 = 22248^2 + 5767^2 .

It is a cyclic number.

It is not a de Polignac number, because 528231793 - 2¹ = 528231791 is a prime.

Together with 528231791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (528231791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264115896 + 264115897.

It is an arithmetic number, because the mean of its divisors is an integer number (264115897).

Almost surely, 2^528231793 is an apocalyptic number.

It is an amenable number.

528231793 is a deficient number, since it is larger than the sum of its proper divisors (1).

528231793 is an equidigital number, since it uses as much as digits as its factorization.

528231793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 528231793 is about 22983.2937804832. The cubic root of 528231793 is about 808.3662609560.

The spelling of 528231793 in words is "five hundred twenty-eight million, two hundred thirty-one thousand, seven hundred ninety-three".