13630247 has 2 divisors, whose sum is σ = 13630248. Its totient is φ = 13630246.

The previous prime is 13630229. The next prime is 13630259. The reversal of 13630247 is 74203631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13630247 - 2⁸ = 13629991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13630207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815123 + 6815124.

It is an arithmetic number, because the mean of its divisors is an integer number (6815124).

Almost surely, 2^13630247 is an apocalyptic number.

13630247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13630247 is an equidigital number, since it uses as much as digits as its factorization.

13630247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 13630247 is about 3691.9164400078. The cubic root of 13630247 is about 238.8734646452.

Adding to 13630247 its reverse (74203631), we get a palindrome (87833878).

The spelling of 13630247 in words is "thirteen million, six hundred thirty thousand, two hundred forty-seven".