13227979 has 4 divisors (see below), whose sum is σ = 13654720. Its totient is φ = 12801240.

The previous prime is 13227947. The next prime is 13227983. The reversal of 13227979 is 97972231.

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 13227979 - 2⁵ = 13227947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13227919) 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, 213324 + ... + 213385.

It is an arithmetic number, because the mean of its divisors is an integer number (3413680).

Almost surely, 2^13227979 is an apocalyptic number.

13227979 is a deficient number, since it is larger than the sum of its proper divisors (426741).

13227979 is an equidigital number, since it uses as much as digits as its factorization.

13227979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426740.

The product of its digits is 47628, while the sum is 40.

The square root of 13227979 is about 3637.0288698332. The cubic root of 13227979 is about 236.5000111742.

The spelling of 13227979 in words is "thirteen million, two hundred twenty-seven thousand, nine hundred seventy-nine".