13721413 has 8 divisors (see below), whose sum is σ = 14163968. Its totient is φ = 13282704.

The previous prime is 13721381. The next prime is 13721419. The reversal of 13721413 is 31412731.

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

It is not a de Polignac number, because 13721413 - 2⁵ = 13721381 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 (13721419) 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, 7420 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (1770496).

Almost surely, 2^13721413 is an apocalyptic number.

It is an amenable number.

13721413 is a deficient number, since it is larger than the sum of its proper divisors (442555).

13721413 is a wasteful number, since it uses less digits than its factorization.

13721413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its digits is 504, while the sum is 22.

The square root of 13721413 is about 3704.2425676513. The cubic root of 13721413 is about 239.4048506064.

The spelling of 13721413 in words is "thirteen million, seven hundred twenty-one thousand, four hundred thirteen".