13720006 has 8 divisors (see below), whose sum is σ = 21474864. Its totient is φ = 6561720.

The previous prime is 13720001. The next prime is 13720039. The reversal of 13720006 is 60002731.

13720006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720001) 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, 149085 + ... + 149176.

It is an arithmetic number, because the mean of its divisors is an integer number (2684358).

Almost surely, 2^13720006 is an apocalyptic number.

13720006 is a deficient number, since it is larger than the sum of its proper divisors (7754858).

13720006 is a wasteful number, since it uses less digits than its factorization.

13720006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298286.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 13720006 is about 3704.0526454142. The cubic root of 13720006 is about 239.3966674322.

Adding to 13720006 its reverse (60002731), we get a palindrome (73722737).

The spelling of 13720006 in words is "thirteen million, seven hundred twenty thousand, six".