12005963 has 2 divisors, whose sum is σ = 12005964. Its totient is φ = 12005962.

The previous prime is 12005957. The next prime is 12006017. The reversal of 12005963 is 36950021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12005963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12005923) 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, 6002981 + 6002982.

It is an arithmetic number, because the mean of its divisors is an integer number (6002982).

Almost surely, 2^12005963 is an apocalyptic number.

12005963 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005963 is an equidigital number, since it uses as much as digits as its factorization.

12005963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 12005963 is about 3464.9621931559. The cubic root of 12005963 is about 228.9807640701.

Adding to 12005963 its reverse (36950021), we get a palindrome (48955984).

The spelling of 12005963 in words is "twelve million, five thousand, nine hundred sixty-three".