13720908 has 24 divisors (see below), whose sum is σ = 32173120. Its totient is φ = 4551120.

The previous prime is 13720901. The next prime is 13720909. The reversal of 13720908 is 80902731.

It is a happy number.

13720908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13720901) 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, 178 + ... + 5241.

Almost surely, 2^13720908 is an apocalyptic number.

It is an amenable number.

13720908 is an abundant number, since it is smaller than the sum of its proper divisors (18452212).

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

13720908 is a wasteful number, since it uses less digits than its factorization.

13720908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 13720908 is about 3704.1744019417. The cubic root of 13720908 is about 239.4019135684.

The spelling of 13720908 in words is "thirteen million, seven hundred twenty thousand, nine hundred eight".