13623808 has 80 divisors (see below), whose sum is σ = 30935520. Its totient is φ = 5939200.

The previous prime is 13623803. The next prime is 13623821. The reversal of 13623808 is 80832631.

It is a self number, because there is not a number n which added to its sum of digits gives 13623808.

It is not an unprimeable number, because it can be changed into a prime (13623803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230883 + ... + 230941.

It is an arithmetic number, because the mean of its divisors is an integer number (386694).

Almost surely, 2^13623808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13623808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467760).

13623808 is an abundant number, since it is smaller than the sum of its proper divisors (17311712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13623808 is an equidigital number, since it uses as much as digits as its factorization.

13623808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13623808 is about 3691.0442966727. The cubic root of 13623808 is about 238.8358436956.

The spelling of 13623808 in words is "thirteen million, six hundred twenty-three thousand, eight hundred eight".