13687403 has 2 divisors, whose sum is σ = 13687404. Its totient is φ = 13687402.

The previous prime is 13687357. The next prime is 13687411. The reversal of 13687403 is 30478631.

It is a strong prime.

It is an emirp because it is prime and its reverse (30478631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13687403 - 2²⁰ = 12638827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13687403.

It is not a weakly prime, because it can be changed into another prime (13687423) 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, 6843701 + 6843702.

It is an arithmetic number, because the mean of its divisors is an integer number (6843702).

Almost surely, 2^13687403 is an apocalyptic number.

13687403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13687403 is an equidigital number, since it uses as much as digits as its factorization.

13687403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13687403 is about 3699.6490374088. The cubic root of 13687403 is about 239.2068900582.

The spelling of 13687403 in words is "thirteen million, six hundred eighty-seven thousand, four hundred three".