13388743 has 4 divisors (see below), whose sum is σ = 13397688. Its totient is φ = 13379800.

The previous prime is 13388719. The next prime is 13388747. The reversal of 13388743 is 34788331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34788331 = 109 ⋅319159.

It is a cyclic number.

It is not a de Polignac number, because 13388743 - 2²¹ = 11291591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621 + ... + 5422.

It is an arithmetic number, because the mean of its divisors is an integer number (3349422).

Almost surely, 2^13388743 is an apocalyptic number.

13388743 is a deficient number, since it is larger than the sum of its proper divisors (8945).

13388743 is an equidigital number, since it uses as much as digits as its factorization.

13388743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8944.

The product of its digits is 48384, while the sum is 37.

The square root of 13388743 is about 3659.0631314587. The cubic root of 13388743 is about 237.4542434474.

The spelling of 13388743 in words is "thirteen million, three hundred eighty-eight thousand, seven hundred forty-three".