13422709 has 2 divisors, whose sum is σ = 13422710. Its totient is φ = 13422708.

The previous prime is 13422701. The next prime is 13422719. The reversal of 13422709 is 90722431.

13422709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11035684 + 2387025 = 3322^2 + 1545^2 .

It is an emirp because it is prime and its reverse (90722431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13422709 - 2³ = 13422701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13422701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711354 + 6711355.

It is an arithmetic number, because the mean of its divisors is an integer number (6711355).

Almost surely, 2^13422709 is an apocalyptic number.

It is an amenable number.

13422709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13422709 is an equidigital number, since it uses as much as digits as its factorization.

13422709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13422709 is about 3663.7015435213. The cubic root of 13422709 is about 237.6548736849.

The spelling of 13422709 in words is "thirteen million, four hundred twenty-two thousand, seven hundred nine".