13753865 has 4 divisors (see below), whose sum is σ = 16504644. Its totient is φ = 11003088.

The previous prime is 13753849. The next prime is 13753919. The reversal of 13753865 is 56835731.

13753865 is digitally balanced in base 2, 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 2050624 + 11703241 = 1432^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 13753865 - 2⁴ = 13753849 is a prime.

It is a Duffinian 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, 1375382 + ... + 1375391.

It is an arithmetic number, because the mean of its divisors is an integer number (4126161).

Almost surely, 2^13753865 is an apocalyptic number.

It is an amenable number.

13753865 is a deficient number, since it is larger than the sum of its proper divisors (2750779).

13753865 is an equidigital number, since it uses as much as digits as its factorization.

13753865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750778.

The product of its digits is 75600, while the sum is 38.

The square root of 13753865 is about 3708.6203634236. The cubic root of 13753865 is about 239.5934378263.

The spelling of 13753865 in words is "thirteen million, seven hundred fifty-three thousand, eight hundred sixty-five".