12027979 has 4 divisors (see below), whose sum is σ = 12254976. Its totient is φ = 11800984.

The previous prime is 12027971. The next prime is 12028001. The reversal of 12027979 is 97972021.

12027979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12027979 - 2³ = 12027971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12027971) 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, 113419 + ... + 113524.

It is an arithmetic number, because the mean of its divisors is an integer number (3063744).

Almost surely, 2^12027979 is an apocalyptic number.

12027979 is a deficient number, since it is larger than the sum of its proper divisors (226997).

12027979 is an equidigital number, since it uses as much as digits as its factorization.

12027979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226996.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 12027979 is about 3468.1376846948. The cubic root of 12027979 is about 229.1206435109.

The spelling of 12027979 in words is "twelve million, twenty-seven thousand, nine hundred seventy-nine".