828730328717 has 2 divisors, whose sum is σ = 828730328718. Its totient is φ = 828730328716.

The previous prime is 828730328689. The next prime is 828730328743. The reversal of 828730328717 is 717823037828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753196601161 + 75533727556 = 867869^2 + 274834^2 .

It is a cyclic number.

It is not a de Polignac number, because 828730328717 - 2²⁸ = 828461893261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828730328747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414365164358 + 414365164359.

It is an arithmetic number, because the mean of its divisors is an integer number (414365164359).

Almost surely, 2^828730328717 is an apocalyptic number.

It is an amenable number.

828730328717 is a deficient number, since it is larger than the sum of its proper divisors (1).

828730328717 is an equidigital number, since it uses as much as digits as its factorization.

828730328717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 828730328717 in words is "eight hundred twenty-eight billion, seven hundred thirty million, three hundred twenty-eight thousand, seven hundred seventeen".