8213219 has 8 divisors (see below), whose sum is σ = 9480288. Its totient is φ = 6969600.

The previous prime is 8213207. The next prime is 8213221. The reversal of 8213219 is 9123128.

8213219 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8213219 is a prime.

It is a super-2 number, since 2×8213219² = 134913932683922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8213279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5102 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (1185036).

Almost surely, 2^8213219 is an apocalyptic number.

8213219 is a deficient number, since it is larger than the sum of its proper divisors (1267069).

8213219 is a wasteful number, since it uses less digits than its factorization.

8213219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11725.

The product of its digits is 864, while the sum is 26.

The square root of 8213219 is about 2865.8714207026. The cubic root of 8213219 is about 201.7612691255.

Subtracting 8213219 from its reverse (9123128), we obtain a palindrome (909909).

The spelling of 8213219 in words is "eight million, two hundred thirteen thousand, two hundred nineteen".