13085887 has 2 divisors, whose sum is σ = 13085888. Its totient is φ = 13085886.

The previous prime is 13085879. The next prime is 13085899. The reversal of 13085887 is 78858031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13085887 - 2³ = 13085879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13085857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6542943 + 6542944.

It is an arithmetic number, because the mean of its divisors is an integer number (6542944).

Almost surely, 2^13085887 is an apocalyptic number.

13085887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13085887 is an equidigital number, since it uses as much as digits as its factorization.

13085887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 13085887 is about 3617.4420520583. The cubic root of 13085887 is about 235.6501507440.

The spelling of 13085887 in words is "thirteen million, eighty-five thousand, eight hundred eighty-seven".