13085587 has 4 divisors (see below), whose sum is σ = 13147816. Its totient is φ = 13023360.

The previous prime is 13085561. The next prime is 13085603. The reversal of 13085587 is 78558031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13085587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13085507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30798 + ... + 31219.

It is an arithmetic number, because the mean of its divisors is an integer number (3286954).

Almost surely, 2^13085587 is an apocalyptic number.

13085587 is a deficient number, since it is larger than the sum of its proper divisors (62229).

13085587 is an equidigital number, since it uses as much as digits as its factorization.

13085587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62228.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 13085587 is about 3617.4005860562. The cubic root of 13085587 is about 235.6483499341.

The spelling of 13085587 in words is "thirteen million, eighty-five thousand, five hundred eighty-seven".