13408865 has 8 divisors (see below), whose sum is σ = 16433280. Its totient is φ = 10498672.

The previous prime is 13408831. The next prime is 13408867. The reversal of 13408865 is 56880431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13408865 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13408867) 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, 28295 + ... + 28764.

It is an arithmetic number, because the mean of its divisors is an integer number (2054160).

Almost surely, 2^13408865 is an apocalyptic number.

It is an amenable number.

13408865 is a deficient number, since it is larger than the sum of its proper divisors (3024415).

13408865 is an equidigital number, since it uses as much as digits as its factorization.

13408865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57111.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 13408865 is about 3661.8117100692. The cubic root of 13408865 is about 237.5731409080.

The spelling of 13408865 in words is "thirteen million, four hundred eight thousand, eight hundred sixty-five".