8219347 has 4 divisors (see below), whose sum is σ = 8702856. Its totient is φ = 7735840.

The previous prime is 8219339. The next prime is 8219353. The reversal of 8219347 is 7439128.

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

It is a cyclic number.

It is not a de Polignac number, because 8219347 - 2³ = 8219339 is a prime.

It is a Duffinian number.

8219347 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8219317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241729 + ... + 241762.

It is an arithmetic number, because the mean of its divisors is an integer number (2175714).

Almost surely, 2^8219347 is an apocalyptic number.

8219347 is a deficient number, since it is larger than the sum of its proper divisors (483509).

8219347 is a wasteful number, since it uses less digits than its factorization.

8219347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483508.

The product of its digits is 12096, while the sum is 34.

The square root of 8219347 is about 2866.9403551522. The cubic root of 8219347 is about 201.8114356391.

The spelling of 8219347 in words is "eight million, two hundred nineteen thousand, three hundred forty-seven".