13758805 has 4 divisors (see below), whose sum is σ = 16510572. Its totient is φ = 11007040.

The previous prime is 13758803. The next prime is 13758817. The reversal of 13758805 is 50885731.

13758805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6436369 + 7322436 = 2537^2 + 2706^2 .

It is not a de Polignac number, because 13758805 - 2¹ = 13758803 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 (13758803) 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, 1375876 + ... + 1375885.

It is an arithmetic number, because the mean of its divisors is an integer number (4127643).

Almost surely, 2^13758805 is an apocalyptic number.

It is an amenable number.

13758805 is a deficient number, since it is larger than the sum of its proper divisors (2751767).

13758805 is an equidigital number, since it uses as much as digits as its factorization.

13758805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751766.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 13758805 is about 3709.2863194960. The cubic root of 13758805 is about 239.6221194589.

The spelling of 13758805 in words is "thirteen million, seven hundred fifty-eight thousand, eight hundred five".