13922971 has 8 divisors (see below), whose sum is σ = 14107280. Its totient is φ = 13740192.

The previous prime is 13922969. The next prime is 13922977. The reversal of 13922971 is 17922931.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13922971 - 2¹ = 13922969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13922977) 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 7 ways as a sum of consecutive naturals, for example, 37141 + ... + 37513.

It is an arithmetic number, because the mean of its divisors is an integer number (1763410).

Almost surely, 2^13922971 is an apocalyptic number.

13922971 is a deficient number, since it is larger than the sum of its proper divisors (184309).

13922971 is a wasteful number, since it uses less digits than its factorization.

13922971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its digits is 6804, while the sum is 34.

The square root of 13922971 is about 3731.3497557854. The cubic root of 13922971 is about 240.5713874148.

The spelling of 13922971 in words is "thirteen million, nine hundred twenty-two thousand, nine hundred seventy-one".