15887 has 2 divisors, whose sum is σ = 15888. Its totient is φ = 15886.

The previous prime is 15881. The next prime is 15889. The reversal of 15887 is 78851.

It is a happy number.

15887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15887 - 2⁶ = 15823 is a prime.

Together with 15889, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 15887.

It is not a weakly prime, because it can be changed into another prime (15881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7943 + 7944.

It is an arithmetic number, because the mean of its divisors is an integer number (7944).

2¹⁵⁸⁸⁷ is an apocalyptic number.

15887 is a deficient number, since it is larger than the sum of its proper divisors (1).

15887 is an equidigital number, since it uses as much as digits as its factorization.

15887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 29.

The square root of 15887 is about 126.0436432352. The cubic root of 15887 is about 25.1389595124.

The spelling of 15887 in words is "fifteen thousand, eight hundred eighty-seven".