8257234213 has 2 divisors, whose sum is σ = 8257234214. Its totient is φ = 8257234212.

The previous prime is 8257234211. The next prime is 8257234259. The reversal of 8257234213 is 3124327528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5225410369 + 3031823844 = 72287^2 + 55062^2 .

It is a cyclic number.

It is not a de Polignac number, because 8257234213 - 2¹ = 8257234211 is a prime.

Together with 8257234211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8257234211) 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, 4128617106 + 4128617107.

It is an arithmetic number, because the mean of its divisors is an integer number (4128617107).

Almost surely, 2^8257234213 is an apocalyptic number.

It is an amenable number.

8257234213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8257234213 is an equidigital number, since it uses as much as digits as its factorization.

8257234213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 8257234213 is about 90869.3249287129. The cubic root of 8257234213 is about 2021.2104476860.

The spelling of 8257234213 in words is "eight billion, two hundred fifty-seven million, two hundred thirty-four thousand, two hundred thirteen".