13722347 has 2 divisors, whose sum is σ = 13722348. Its totient is φ = 13722346.

The previous prime is 13722341. The next prime is 13722361. The reversal of 13722347 is 74322731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13722347 - 2⁸ = 13722091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13722341) 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 as a sum of consecutive naturals, namely, 6861173 + 6861174.

It is an arithmetic number, because the mean of its divisors is an integer number (6861174).

Almost surely, 2^13722347 is an apocalyptic number.

13722347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13722347 is an equidigital number, since it uses as much as digits as its factorization.

13722347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 29.

The square root of 13722347 is about 3704.3686371634. The cubic root of 13722347 is about 239.4102824828.

The spelling of 13722347 in words is "thirteen million, seven hundred twenty-two thousand, three hundred forty-seven".