13720007 has 8 divisors (see below), whose sum is σ = 16104096. Its totient is φ = 11441952.

The previous prime is 13720001. The next prime is 13720039. The reversal of 13720007 is 70002731.

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

It is a cyclic number.

It is not a de Polignac number, because 13720007 - 2⁴ = 13719991 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 (13720001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26228 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (2013012).

Almost surely, 2^13720007 is an apocalyptic number.

13720007 is a deficient number, since it is larger than the sum of its proper divisors (2384089).

13720007 is an equidigital number, since it uses as much as digits as its factorization.

13720007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53017.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 13720007 is about 3704.0527804015. The cubic root of 13720007 is about 239.3966732484.

Adding to 13720007 its reverse (70002731), we get a palindrome (83722738).

The spelling of 13720007 in words is "thirteen million, seven hundred twenty thousand, seven".