6629213 has 2 divisors, whose sum is σ = 6629214. Its totient is φ = 6629212.

The previous prime is 6629191. The next prime is 6629219. The reversal of 6629213 is 3129266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6543364 + 85849 = 2558^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 6629213 - 2⁶ = 6629149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6629219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314606 + 3314607.

It is an arithmetic number, because the mean of its divisors is an integer number (3314607).

Almost surely, 2^6629213 is an apocalyptic number.

It is an amenable number.

6629213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629213 is an equidigital number, since it uses as much as digits as its factorization.

6629213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 6629213 is about 2574.7258106447. The cubic root of 6629213 is about 187.8540911790.

The spelling of 6629213 in words is "six million, six hundred twenty-nine thousand, two hundred thirteen".