12005479 has 2 divisors, whose sum is σ = 12005480. Its totient is φ = 12005478.

The previous prime is 12005423. The next prime is 12005489. The reversal of 12005479 is 97450021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12005479 - 2¹⁵ = 11972711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005419) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002739 + 6002740.

It is an arithmetic number, because the mean of its divisors is an integer number (6002740).

Almost surely, 2^12005479 is an apocalyptic number.

12005479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005479 is an equidigital number, since it uses as much as digits as its factorization.

12005479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12005479 is about 3464.8923504201. The cubic root of 12005479 is about 228.9776870386.

The spelling of 12005479 in words is "twelve million, five thousand, four hundred seventy-nine".