13720073 has 8 divisors (see below), whose sum is σ = 14257920. Its totient is φ = 13188240.

The previous prime is 13720061. The next prime is 13720127. The reversal of 13720073 is 37002731.

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 13720073 - 2¹⁰ = 13719049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13420073) 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, 3458 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (1782240).

Almost surely, 2^13720073 is an apocalyptic number.

It is an amenable number.

13720073 is a deficient number, since it is larger than the sum of its proper divisors (537847).

13720073 is a wasteful number, since it uses less digits than its factorization.

13720073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007.

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

The square root of 13720073 is about 3704.0616895511. The cubic root of 13720073 is about 239.3970571198.

The spelling of 13720073 in words is "thirteen million, seven hundred twenty thousand, seventy-three".