13604287 has 2 divisors, whose sum is σ = 13604288. Its totient is φ = 13604286.

The previous prime is 13604263. The next prime is 13604299. The reversal of 13604287 is 78240631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13604287 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 (13604587) 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, 6802143 + 6802144.

It is an arithmetic number, because the mean of its divisors is an integer number (6802144).

Almost surely, 2^13604287 is an apocalyptic number.

13604287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13604287 is an equidigital number, since it uses as much as digits as its factorization.

13604287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 13604287 is about 3688.3989751652. The cubic root of 13604287 is about 238.7217164489.

The spelling of 13604287 in words is "thirteen million, six hundred four thousand, two hundred eighty-seven".