8564213 has 4 divisors (see below), whose sum is σ = 9787680. Its totient is φ = 7340748.

The previous prime is 8564197. The next prime is 8564221. The reversal of 8564213 is 3124658.

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 a cyclic number.

It is not a de Polignac number, because 8564213 - 2⁴ = 8564197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8564273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611723 + ... + 611736.

It is an arithmetic number, because the mean of its divisors is an integer number (2446920).

Almost surely, 2^8564213 is an apocalyptic number.

It is an amenable number.

8564213 is a deficient number, since it is larger than the sum of its proper divisors (1223467).

8564213 is a wasteful number, since it uses less digits than its factorization.

8564213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223466.

The product of its digits is 5760, while the sum is 29.

The square root of 8564213 is about 2926.4676659755. The cubic root of 8564213 is about 204.5953787783.

The spelling of 8564213 in words is "eight million, five hundred sixty-four thousand, two hundred thirteen".