13087713 has 32 divisors (see below), whose sum is σ = 19584000. Its totient is φ = 7736256.

The previous prime is 13087709. The next prime is 13087721. The reversal of 13087713 is 31778031.

It is not a de Polignac number, because 13087713 - 2² = 13087709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13087783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87763 + ... + 87911.

It is an arithmetic number, because the mean of its divisors is an integer number (612000).

Almost surely, 2^13087713 is an apocalyptic number.

It is an amenable number.

13087713 is a deficient number, since it is larger than the sum of its proper divisors (6496287).

13087713 is a wasteful number, since it uses less digits than its factorization.

13087713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 13087713 is about 3617.6944315406. The cubic root of 13087713 is about 235.6611110802.

The spelling of 13087713 in words is "thirteen million, eighty-seven thousand, seven hundred thirteen".