389838803 has 2 divisors, whose sum is σ = 389838804. Its totient is φ = 389838802.

The previous prime is 389838773. The next prime is 389838853. The reversal of 389838803 is 308838983.

It is an a-pointer prime, because the next prime (389838853) can be obtained adding 389838803 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389838803 - 2¹⁰ = 389837779 is a prime.

It is not a weakly prime, because it can be changed into another prime (389838853) 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, 194919401 + 194919402.

It is an arithmetic number, because the mean of its divisors is an integer number (194919402).

Almost surely, 2^389838803 is an apocalyptic number.

389838803 is a deficient number, since it is larger than the sum of its proper divisors (1).

389838803 is an equidigital number, since it uses as much as digits as its factorization.

389838803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 389838803 is about 19744.3359726277. The cubic root of 389838803 is about 730.5136829854.

The spelling of 389838803 in words is "three hundred eighty-nine million, eight hundred thirty-eight thousand, eight hundred three".