13263647 has 2 divisors, whose sum is σ = 13263648. Its totient is φ = 13263646.

The previous prime is 13263637. The next prime is 13263659. The reversal of 13263647 is 74636231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13263647 - 2¹² = 13259551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13263637) 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, 6631823 + 6631824.

It is an arithmetic number, because the mean of its divisors is an integer number (6631824).

Almost surely, 2^13263647 is an apocalyptic number.

13263647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263647 is an equidigital number, since it uses as much as digits as its factorization.

13263647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 13263647 is about 3641.9290218235. The cubic root of 13263647 is about 236.7123870760.

Adding to 13263647 its reverse (74636231), we get a palindrome (87899878).

The spelling of 13263647 in words is "thirteen million, two hundred sixty-three thousand, six hundred forty-seven".