13338805 has 4 divisors (see below), whose sum is σ = 16006572. Its totient is φ = 10671040.

The previous prime is 13338799. The next prime is 13338821. The reversal of 13338805 is 50883331.

13338805 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50883331 = 1069 ⋅47599.

It can be written as a sum of positive squares in 2 ways, for example, as 8916196 + 4422609 = 2986^2 + 2103^2 .

It is not a de Polignac number, because 13338805 - 2¹⁹ = 12814517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333876 + ... + 1333885.

It is an arithmetic number, because the mean of its divisors is an integer number (4001643).

Almost surely, 2^13338805 is an apocalyptic number.

It is an amenable number.

13338805 is a deficient number, since it is larger than the sum of its proper divisors (2667767).

13338805 is an equidigital number, since it uses as much as digits as its factorization.

13338805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667766.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13338805 is about 3652.2328786648. The cubic root of 13338805 is about 237.1586527541.

The spelling of 13338805 in words is "thirteen million, three hundred thirty-eight thousand, eight hundred five".