846224213 has 2 divisors, whose sum is σ = 846224214. Its totient is φ = 846224212.

The previous prime is 846224189. The next prime is 846224231. The reversal of 846224213 is 312422648.

846224213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (846224231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626651089 + 219573124 = 25033^2 + 14818^2 .

It is a cyclic number.

It is not a de Polignac number, because 846224213 - 2⁶ = 846224149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 846224213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846224233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423112106 + 423112107.

It is an arithmetic number, because the mean of its divisors is an integer number (423112107).

Almost surely, 2^846224213 is an apocalyptic number.

It is an amenable number.

846224213 is a deficient number, since it is larger than the sum of its proper divisors (1).

846224213 is an equidigital number, since it uses as much as digits as its factorization.

846224213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 32.

The square root of 846224213 is about 29089.9331900230. The cubic root of 846224213 is about 945.8635343618.

The spelling of 846224213 in words is "eight hundred forty-six million, two hundred twenty-four thousand, two hundred thirteen".