828752213 has 2 divisors, whose sum is σ = 828752214. Its totient is φ = 828752212.

The previous prime is 828752209. The next prime is 828752219. The reversal of 828752213 is 312257828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666775684 + 161976529 = 25822^2 + 12727^2 .

It is a cyclic number.

It is not a de Polignac number, because 828752213 - 2² = 828752209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_42547673 and since 828752213 and 42547673 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828752219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414376106 + 414376107.

It is an arithmetic number, because the mean of its divisors is an integer number (414376107).

Almost surely, 2^828752213 is an apocalyptic number.

It is an amenable number.

828752213 is a deficient number, since it is larger than the sum of its proper divisors (1).

828752213 is an equidigital number, since it uses as much as digits as its factorization.

828752213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 828752213 is about 28788.0567770734. The cubic root of 828752213 is about 939.3084596075.

The spelling of 828752213 in words is "eight hundred twenty-eight million, seven hundred fifty-two thousand, two hundred thirteen".