13604263 has 2 divisors, whose sum is σ = 13604264. Its totient is φ = 13604262.

The previous prime is 13604249. The next prime is 13604287. The reversal of 13604263 is 36240631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13604263 - 2¹⁷ = 13473191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13604243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6802131 + 6802132.

It is an arithmetic number, because the mean of its divisors is an integer number (6802132).

Almost surely, 2^13604263 is an apocalyptic number.

13604263 is a deficient number, since it is larger than the sum of its proper divisors (1).

13604263 is an equidigital number, since it uses as much as digits as its factorization.

13604263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 13604263 is about 3688.3957217197. The cubic root of 13604263 is about 238.7215760685.

Adding to 13604263 its reverse (36240631), we get a palindrome (49844894).

The spelling of 13604263 in words is "thirteen million, six hundred four thousand, two hundred sixty-three".