13286387 has 8 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 12492040.

The previous prime is 13286369. The next prime is 13286389. The reversal of 13286387 is 78368231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13286387 - 2⁶ = 13286323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13286387.

It is not an unprimeable number, because it can be changed into a prime (13286389) 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, 3539 + ... + 6252.

It is an arithmetic number, because the mean of its divisors is an integer number (1762560).

Almost surely, 2^13286387 is an apocalyptic number.

13286387 is a deficient number, since it is larger than the sum of its proper divisors (814093).

13286387 is an equidigital number, since it uses as much as digits as its factorization.

13286387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its digits is 48384, while the sum is 38.

The square root of 13286387 is about 3645.0496567262. The cubic root of 13286387 is about 236.8475878592.

The spelling of 13286387 in words is "thirteen million, two hundred eighty-six thousand, three hundred eighty-seven".