389903 has 2 divisors, whose sum is σ = 389904. Its totient is φ = 389902.

The previous prime is 389897. The next prime is 389911. The reversal of 389903 is 309983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389903 - 2⁶ = 389839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194951 + 194952.

It is an arithmetic number, because the mean of its divisors is an integer number (194952).

2³⁸⁹⁹⁰³ is an apocalyptic number.

389903 is a deficient number, since it is larger than the sum of its proper divisors (1).

389903 is an equidigital number, since it uses as much as digits as its factorization.

389903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 389903 is about 624.4221328557. The cubic root of 389903 is about 73.0553780082.

The spelling of 389903 in words is "three hundred eighty-nine thousand, nine hundred three".