13831608 has 128 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 3569664.

The previous prime is 13831607. The next prime is 13831619. The reversal of 13831608 is 80613831.

13831608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82741 + ... + 82907.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^13831608 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 13831608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

13831608 is an abundant number, since it is smaller than the sum of its proper divisors (29713992).

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

13831608 is a wasteful number, since it uses less digits than its factorization.

13831608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 13831608 is about 3719.0869847316. The cubic root of 13831608 is about 240.0440197034.

The spelling of 13831608 in words is "thirteen million, eight hundred thirty-one thousand, six hundred eight".