12043817 has 2 divisors, whose sum is σ = 12043818. Its totient is φ = 12043816.

The previous prime is 12043799. The next prime is 12043831. The reversal of 12043817 is 71834021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 44521 = 3464^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 12043817 - 2¹⁸ = 11781673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12043117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021908 + 6021909.

It is an arithmetic number, because the mean of its divisors is an integer number (6021909).

Almost surely, 2^12043817 is an apocalyptic number.

It is an amenable number.

12043817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043817 is an equidigital number, since it uses as much as digits as its factorization.

12043817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12043817 is about 3470.4202915497. The cubic root of 12043817 is about 229.2211652791.

Adding to 12043817 its reverse (71834021), we get a palindrome (83877838).

The spelling of 12043817 in words is "twelve million, forty-three thousand, eight hundred seventeen".