8320229 has 2 divisors, whose sum is σ = 8320230. Its totient is φ = 8320228.

The previous prime is 8320219. The next prime is 8320267. The reversal of 8320229 is 9220238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6076225 + 2244004 = 2465^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 8320229 - 2¹⁶ = 8254693 is a prime.

It is a super-2 number, since 2×8320229² = 138452421224882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8320198 and 8320207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8320219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160114 + 4160115.

It is an arithmetic number, because the mean of its divisors is an integer number (4160115).

Almost surely, 2^8320229 is an apocalyptic number.

It is an amenable number.

8320229 is a deficient number, since it is larger than the sum of its proper divisors (1).

8320229 is an equidigital number, since it uses as much as digits as its factorization.

8320229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 8320229 is about 2884.4807158308. The cubic root of 8320229 is about 202.6337398295.

Subtracting 8320229 from its reverse (9220238), we obtain a palindrome (900009).

The spelling of 8320229 in words is "eight million, three hundred twenty thousand, two hundred twenty-nine".