13825687 has 2 divisors, whose sum is σ = 13825688. Its totient is φ = 13825686.

The previous prime is 13825681. The next prime is 13825697. The reversal of 13825687 is 78652831.

13825687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13825687 - 2²³ = 5437079 is a prime.

It is a super-2 number, since 2×13825687² = 382299242043938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13825681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912843 + 6912844.

It is an arithmetic number, because the mean of its divisors is an integer number (6912844).

Almost surely, 2^13825687 is an apocalyptic number.

13825687 is a deficient number, since it is larger than the sum of its proper divisors (1).

13825687 is an equidigital number, since it uses as much as digits as its factorization.

13825687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 13825687 is about 3718.2908708169. The cubic root of 13825687 is about 240.0097623344.

The spelling of 13825687 in words is "thirteen million, eight hundred twenty-five thousand, six hundred eighty-seven".