3666594487 has 2 divisors, whose sum is σ = 3666594488. Its totient is φ = 3666594486.

The previous prime is 3666594467. The next prime is 3666594509. The reversal of 3666594487 is 7844956663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3666594487 - 2¹⁵ = 3666561719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3666594467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833297243 + 1833297244.

It is an arithmetic number, because the mean of its divisors is an integer number (1833297244).

Almost surely, 2^3666594487 is an apocalyptic number.

3666594487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666594487 is an equidigital number, since it uses as much as digits as its factorization.

3666594487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 58.

The square root of 3666594487 is about 60552.4110750348. The cubic root of 3666594487 is about 1542.0115512421.

The spelling of 3666594487 in words is "three billion, six hundred sixty-six million, five hundred ninety-four thousand, four hundred eighty-seven".