846645213 has 4 divisors (see below), whose sum is σ = 1128860288. Its totient is φ = 564430140.

The previous prime is 846645199. The next prime is 846645229. The reversal of 846645213 is 312546648.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 846645213 - 2⁵ = 846645181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846645253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141107533 + ... + 141107538.

It is an arithmetic number, because the mean of its divisors is an integer number (282215072).

Almost surely, 2^846645213 is an apocalyptic number.

It is an amenable number.

846645213 is a deficient number, since it is larger than the sum of its proper divisors (282215075).

846645213 is a wasteful number, since it uses less digits than its factorization.

846645213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282215074.

The product of its digits is 138240, while the sum is 39.

The square root of 846645213 is about 29097.1684704887. The cubic root of 846645213 is about 946.0203653464.

The spelling of 846645213 in words is "eight hundred forty-six million, six hundred forty-five thousand, two hundred thirteen".