13808785 has 8 divisors (see below), whose sum is σ = 17142120. Its totient is φ = 10665984.

The previous prime is 13808783. The next prime is 13808791. The reversal of 13808785 is 58780831.

It can be written as a sum of positive squares in 4 ways, for example, as 588289 + 13220496 = 767^2 + 3636^2 .

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 13808785 - 2¹ = 13808783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13808783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47472 + ... + 47761.

It is an arithmetic number, because the mean of its divisors is an integer number (2142765).

Almost surely, 2^13808785 is an apocalyptic number.

It is an amenable number.

13808785 is a deficient number, since it is larger than the sum of its proper divisors (3333335).

13808785 is an equidigital number, since it uses as much as digits as its factorization.

13808785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95267.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 13808785 is about 3716.0173573330. The cubic root of 13808785 is about 239.9119179085.

The spelling of 13808785 in words is "thirteen million, eight hundred eight thousand, seven hundred eighty-five".