8223447 has 8 divisors (see below), whose sum is σ = 11541760. Its totient is φ = 5193720.

The previous prime is 8223421. The next prime is 8223451. The reversal of 8223447 is 7443228.

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

It is a de Polignac number, because none of the positive numbers 2^k-8223447 is a prime.

It is a super-3 number, since 3×8223447³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223407) 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 7 ways as a sum of consecutive naturals, for example, 72079 + ... + 72192.

It is an arithmetic number, because the mean of its divisors is an integer number (1442720).

Almost surely, 2^8223447 is an apocalyptic number.

8223447 is a deficient number, since it is larger than the sum of its proper divisors (3318313).

8223447 is a wasteful number, since it uses less digits than its factorization.

8223447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144293.

The product of its digits is 10752, while the sum is 30.

The square root of 8223447 is about 2867.6553140153. The cubic root of 8223447 is about 201.8449861286.

The spelling of 8223447 in words is "eight million, two hundred twenty-three thousand, four hundred forty-seven".