13808629 has 4 divisors (see below), whose sum is σ = 13951084. Its totient is φ = 13666176.

The previous prime is 13808623. The next prime is 13808651. The reversal of 13808629 is 92680831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92680831 = 149 ⋅622019.

It can be written as a sum of positive squares in 2 ways, for example, as 2235025 + 11573604 = 1495^2 + 3402^2 .

It is a cyclic number.

It is not a de Polignac number, because 13808629 - 2²¹ = 11711477 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 (13808623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71082 + ... + 71275.

It is an arithmetic number, because the mean of its divisors is an integer number (3487771).

Almost surely, 2^13808629 is an apocalyptic number.

It is an amenable number.

13808629 is a deficient number, since it is larger than the sum of its proper divisors (142455).

13808629 is an equidigital number, since it uses as much as digits as its factorization.

13808629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142454.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 13808629 is about 3715.9963670596. The cubic root of 13808629 is about 239.9110144643.

The spelling of 13808629 in words is "thirteen million, eight hundred eight thousand, six hundred twenty-nine".