13720037 has 8 divisors (see below), whose sum is σ = 14774400. Its totient is φ = 12693184.

The previous prime is 13720001. The next prime is 13720039. The reversal of 13720037 is 73002731.

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 13720037 - 2⁸ = 13719781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13719994 and 13720021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720039) 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, 5837 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^13720037 is an apocalyptic number.

13720037 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13720037 is a deficient number, since it is larger than the sum of its proper divisors (1054363).

13720037 is a wasteful number, since it uses less digits than its factorization.

13720037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 13720037 is about 3704.0568300176. The cubic root of 13720037 is about 239.3968477356.

Adding to 13720037 its reverse (73002731), we get a palindrome (86722768).

The spelling of 13720037 in words is "thirteen million, seven hundred twenty thousand, thirty-seven".