13808635 has 4 divisors (see below), whose sum is σ = 16570368. Its totient is φ = 11046904.

The previous prime is 13808623. The next prime is 13808651. The reversal of 13808635 is 53680831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53680831 = 83 ⋅646757.

It is a cyclic number.

It is not a de Polignac number, because 13808635 - 2⁵ = 13808603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13808635.

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, 1380859 + ... + 1380868.

It is an arithmetic number, because the mean of its divisors is an integer number (4142592).

Almost surely, 2^13808635 is an apocalyptic number.

13808635 is a deficient number, since it is larger than the sum of its proper divisors (2761733).

13808635 is an equidigital number, since it uses as much as digits as its factorization.

13808635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761732.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13808635 is about 3715.9971743800. The cubic root of 13808635 is about 239.9110492123.

The spelling of 13808635 in words is "thirteen million, eight hundred eight thousand, six hundred thirty-five".