3660388943 has 2 divisors, whose sum is σ = 3660388944. Its totient is φ = 3660388942.

The previous prime is 3660388871. The next prime is 3660389003. The reversal of 3660388943 is 3498830663.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3660388943 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3660388891 and 3660388900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3660384943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830194471 + 1830194472.

It is an arithmetic number, because the mean of its divisors is an integer number (1830194472).

Almost surely, 2^3660388943 is an apocalyptic number.

3660388943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3660388943 is an equidigital number, since it uses as much as digits as its factorization.

3660388943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The square root of 3660388943 is about 60501.1482783591. The cubic root of 3660388943 is about 1541.1411319268.

The spelling of 3660388943 in words is "three billion, six hundred sixty million, three hundred eighty-eight thousand, nine hundred forty-three".