13087587 has 8 divisors (see below), whose sum is σ = 17499136. Its totient is φ = 8700552.

The previous prime is 13087583. The next prime is 13087601. The reversal of 13087587 is 78578031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13087587 - 2² = 13087583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13087583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843 + ... + 7044.

It is an arithmetic number, because the mean of its divisors is an integer number (2187392).

Almost surely, 2^13087587 is an apocalyptic number.

13087587 is a deficient number, since it is larger than the sum of its proper divisors (4411549).

13087587 is a wasteful number, since it uses less digits than its factorization.

13087587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 13087587 is about 3617.6770170926. The cubic root of 13087587 is about 235.6603548137.

The spelling of 13087587 in words is "thirteen million, eighty-seven thousand, five hundred eighty-seven".