7228229 has 2 divisors, whose sum is σ = 7228230. Its totient is φ = 7228228.

The previous prime is 7228223. The next prime is 7228237. The reversal of 7228229 is 9228227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6880129 + 348100 = 2623^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 7228229 - 2⁸ = 7227973 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7228195 and 7228204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7228223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3614114 + 3614115.

It is an arithmetic number, because the mean of its divisors is an integer number (3614115).

Almost surely, 2^7228229 is an apocalyptic number.

It is an amenable number.

7228229 is a deficient number, since it is larger than the sum of its proper divisors (1).

7228229 is an equidigital number, since it uses as much as digits as its factorization.

7228229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 7228229 is about 2688.5365907869. The cubic root of 7228229 is about 193.3499070875.

The spelling of 7228229 in words is "seven million, two hundred twenty-eight thousand, two hundred twenty-nine".