8421214 has 4 divisors (see below), whose sum is σ = 12631824. Its totient is φ = 4210606.

The previous prime is 8421209. The next prime is 8421227. The reversal of 8421214 is 4121248.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2105302 + ... + 2105305.

It is an arithmetic number, because the mean of its divisors is an integer number (3157956).

Almost surely, 2^8421214 is an apocalyptic number.

8421214 is a deficient number, since it is larger than the sum of its proper divisors (4210610).

8421214 is a wasteful number, since it uses less digits than its factorization.

8421214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210609.

The product of its digits is 512, while the sum is 22.

The square root of 8421214 is about 2901.9328041841. The cubic root of 8421214 is about 203.4502531601.

The spelling of 8421214 in words is "eight million, four hundred twenty-one thousand, two hundred fourteen".