389943083 has 2 divisors, whose sum is σ = 389943084. Its totient is φ = 389943082.

The previous prime is 389943053. The next prime is 389943089. The reversal of 389943083 is 380349983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389943083 - 2⁸ = 389942827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (389943089) 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, 194971541 + 194971542.

It is an arithmetic number, because the mean of its divisors is an integer number (194971542).

Almost surely, 2^389943083 is an apocalyptic number.

389943083 is a deficient number, since it is larger than the sum of its proper divisors (1).

389943083 is an equidigital number, since it uses as much as digits as its factorization.

389943083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 389943083 is about 19746.9765533866. The cubic root of 389943083 is about 730.5788134742.

The spelling of 389943083 in words is "three hundred eighty-nine million, nine hundred forty-three thousand, eighty-three".