8782229 has 2 divisors, whose sum is σ = 8782230. Its totient is φ = 8782228.

The previous prime is 8782211. The next prime is 8782243. The reversal of 8782229 is 9222878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4774225 + 4008004 = 2185^2 + 2002^2 .

It is a cyclic number.

It is not a de Polignac number, because 8782229 - 2¹⁶ = 8716693 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8782192 and 8782201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8782289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4391114 + 4391115.

It is an arithmetic number, because the mean of its divisors is an integer number (4391115).

Almost surely, 2^8782229 is an apocalyptic number.

It is an amenable number.

8782229 is a deficient number, since it is larger than the sum of its proper divisors (1).

8782229 is an equidigital number, since it uses as much as digits as its factorization.

8782229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 8782229 is about 2963.4825796687. The cubic root of 8782229 is about 206.3169548156.

The spelling of 8782229 in words is "eight million, seven hundred eighty-two thousand, two hundred twenty-nine".