13922909 has 24 divisors (see below), whose sum is σ = 19037088. Its totient is φ = 10009440.

The previous prime is 13922869. The next prime is 13922911. The reversal of 13922909 is 90922931.

It is not a de Polignac number, because 13922909 - 2¹⁶ = 13857373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13922939) 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 23 ways as a sum of consecutive naturals, for example, 6014 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (793212).

Almost surely, 2^13922909 is an apocalyptic number.

It is an amenable number.

13922909 is a deficient number, since it is larger than the sum of its proper divisors (5114179).

13922909 is a wasteful number, since it uses less digits than its factorization.

13922909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13922909 is about 3731.3414477906. The cubic root of 13922909 is about 240.5710303203.

The spelling of 13922909 in words is "thirteen million, nine hundred twenty-two thousand, nine hundred nine".