13722586 has 8 divisors (see below), whose sum is σ = 20692224. Its totient is φ = 6825180.

The previous prime is 13722581. The next prime is 13722623. The reversal of 13722586 is 68522731.

It is a happy number.

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

It is a super-3 number, since 3×13722586³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13722581) 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 3 ways as a sum of consecutive naturals, for example, 17580 + ... + 18343.

It is an arithmetic number, because the mean of its divisors is an integer number (2586528).

Almost surely, 2^13722586 is an apocalyptic number.

13722586 is a deficient number, since it is larger than the sum of its proper divisors (6969638).

13722586 is a wasteful number, since it uses less digits than its factorization.

13722586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36116.

The product of its digits is 20160, while the sum is 34.

The square root of 13722586 is about 3704.4008962314. The cubic root of 13722586 is about 239.4116723987.

The spelling of 13722586 in words is "thirteen million, seven hundred twenty-two thousand, five hundred eighty-six".