12009379 has 2 divisors, whose sum is σ = 12009380. Its totient is φ = 12009378.

The previous prime is 12009377. The next prime is 12009383. The reversal of 12009379 is 97390021.

It is a weak prime.

It is an emirp because it is prime and its reverse (97390021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12009379 - 2¹ = 12009377 is a prime.

Together with 12009377, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12009379.

It is not a weakly prime, because it can be changed into another prime (12009377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004689 + 6004690.

It is an arithmetic number, because the mean of its divisors is an integer number (6004690).

Almost surely, 2^12009379 is an apocalyptic number.

12009379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009379 is an equidigital number, since it uses as much as digits as its factorization.

12009379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 12009379 is about 3465.4550927692. The cubic root of 12009379 is about 229.0024789495.

The spelling of 12009379 in words is "twelve million, nine thousand, three hundred seventy-nine".