6636229 has 2 divisors, whose sum is σ = 6636230. Its totient is φ = 6636228.

The previous prime is 6636221. The next prime is 6636269. The reversal of 6636229 is 9226366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 31329 = 2570^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 6636229 - 2³ = 6636221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6636194 and 6636203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6636221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318114 + 3318115.

It is an arithmetic number, because the mean of its divisors is an integer number (3318115).

Almost surely, 2^6636229 is an apocalyptic number.

It is an amenable number.

6636229 is a deficient number, since it is larger than the sum of its proper divisors (1).

6636229 is an equidigital number, since it uses as much as digits as its factorization.

6636229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 6636229 is about 2576.0879255181. The cubic root of 6636229 is about 187.9203393453.

The spelling of 6636229 in words is "six million, six hundred thirty-six thousand, two hundred twenty-nine".