13722413 has 4 divisors (see below), whose sum is σ = 14057148. Its totient is φ = 13387680.

The previous prime is 13722409. The next prime is 13722431. The reversal of 13722413 is 31422731.

13722413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7382089 + 6340324 = 2717^2 + 2518^2 .

It is a cyclic number.

It is not a de Polignac number, because 13722413 - 2² = 13722409 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 (13722403) 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, 167306 + ... + 167387.

It is an arithmetic number, because the mean of its divisors is an integer number (3514287).

Almost surely, 2^13722413 is an apocalyptic number.

It is an amenable number.

13722413 is a deficient number, since it is larger than the sum of its proper divisors (334735).

13722413 is an equidigital number, since it uses as much as digits as its factorization.

13722413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334734.

The product of its digits is 1008, while the sum is 23.

The square root of 13722413 is about 3704.3775455534. The cubic root of 13722413 is about 239.4106663105.

The spelling of 13722413 in words is "thirteen million, seven hundred twenty-two thousand, four hundred thirteen".