13687423 has 2 divisors, whose sum is σ = 13687424. Its totient is φ = 13687422.

The previous prime is 13687411. The next prime is 13687439. The reversal of 13687423 is 32478631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13687423 is a prime.

It is a super-3 number, since 3×13687423³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13687403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6843711 + 6843712.

It is an arithmetic number, because the mean of its divisors is an integer number (6843712).

Almost surely, 2^13687423 is an apocalyptic number.

13687423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13687423 is an equidigital number, since it uses as much as digits as its factorization.

13687423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 13687423 is about 3699.6517403669. The cubic root of 13687423 is about 239.2070065676.

The spelling of 13687423 in words is "thirteen million, six hundred eighty-seven thousand, four hundred twenty-three".