12009377 has 2 divisors, whose sum is σ = 12009378. Its totient is φ = 12009376.

The previous prime is 12009367. The next prime is 12009379. The reversal of 12009377 is 77390021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8620096 + 3389281 = 2936^2 + 1841^2 .

It is a cyclic number.

It is not a de Polignac number, because 12009377 - 2¹⁴ = 11992993 is a prime.

Together with 12009379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12009379) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004688 + 6004689.

It is an arithmetic number, because the mean of its divisors is an integer number (6004689).

Almost surely, 2^12009377 is an apocalyptic number.

It is an amenable number.

12009377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009377 is an equidigital number, since it uses as much as digits as its factorization.

12009377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 12009377 is about 3465.4548042068. The cubic root of 12009377 is about 229.0024662371.

Adding to 12009377 its reverse (77390021), we get a palindrome (89399398).

The spelling of 12009377 in words is "twelve million, nine thousand, three hundred seventy-seven".