8214447 has 4 divisors (see below), whose sum is σ = 10952600. Its totient is φ = 5476296.

The previous prime is 8214439. The next prime is 8214457. The reversal of 8214447 is 7444128.

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

It is not a de Polignac number, because 8214447 - 2³ = 8214439 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 (8214457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369072 + ... + 1369077.

It is an arithmetic number, because the mean of its divisors is an integer number (2738150).

Almost surely, 2^8214447 is an apocalyptic number.

8214447 is a deficient number, since it is larger than the sum of its proper divisors (2738153).

8214447 is a wasteful number, since it uses less digits than its factorization.

8214447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738152.

The product of its digits is 7168, while the sum is 30.

The square root of 8214447 is about 2866.0856581756. The cubic root of 8214447 is about 201.7713240744.

The spelling of 8214447 in words is "eight million, two hundred fourteen thousand, four hundred forty-seven".