13813387 has 8 divisors (see below), whose sum is σ = 15987200. Its totient is φ = 11689704.

The previous prime is 13813369. The next prime is 13813411. The reversal of 13813387 is 78331831.

13813387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13813387 - 2¹⁵ = 13780619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13813307) 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, 11937 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (1998400).

Almost surely, 2^13813387 is an apocalyptic number.

13813387 is a deficient number, since it is larger than the sum of its proper divisors (2173813).

13813387 is an equidigital number, since it uses as much as digits as its factorization.

13813387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25065.

The product of its digits is 12096, while the sum is 34.

The square root of 13813387 is about 3716.6365170675. The cubic root of 13813387 is about 239.9385664519.

The spelling of 13813387 in words is "thirteen million, eight hundred thirteen thousand, three hundred eighty-seven".