14220979 has 4 divisors (see below), whose sum is σ = 14234976. Its totient is φ = 14206984.

The previous prime is 14220977. The next prime is 14221021. The reversal of 14220979 is 97902241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14220979 - 2¹ = 14220977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14220977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5344 + ... + 7549.

It is an arithmetic number, because the mean of its divisors is an integer number (3558744).

Almost surely, 2^14220979 is an apocalyptic number.

14220979 is a deficient number, since it is larger than the sum of its proper divisors (13997).

14220979 is a wasteful number, since it uses less digits than its factorization.

14220979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 14220979 is about 3771.0713331890. The cubic root of 14220979 is about 242.2756858655.

The spelling of 14220979 in words is "fourteen million, two hundred twenty thousand, nine hundred seventy-nine".