6624197 has 2 divisors, whose sum is σ = 6624198. Its totient is φ = 6624196.

The previous prime is 6624143. The next prime is 6624199. The reversal of 6624197 is 7914266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5612161 + 1012036 = 2369^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 6624197 - 2¹⁰ = 6623173 is a prime.

Together with 6624199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6624199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312098 + 3312099.

It is an arithmetic number, because the mean of its divisors is an integer number (3312099).

Almost surely, 2^6624197 is an apocalyptic number.

It is an amenable number.

6624197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6624197 is an equidigital number, since it uses as much as digits as its factorization.

6624197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 6624197 is about 2573.7515420102. The cubic root of 6624197 is about 187.8066992347.

The spelling of 6624197 in words is "six million, six hundred twenty-four thousand, one hundred ninety-seven".