389803 has 4 divisors (see below), whose sum is σ = 391608. Its totient is φ = 388000.

The previous prime is 389797. The next prime is 389819. The reversal of 389803 is 308983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308983 = 59 ⋅5237.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389803 is a prime.

It is a Duffinian number.

389803 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (389003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (97902).

2³⁸⁹⁸⁰³ is an apocalyptic number.

389803 is a deficient number, since it is larger than the sum of its proper divisors (1805).

389803 is a wasteful number, since it uses less digits than its factorization.

389803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 389803 is about 624.3420536853. The cubic root of 389803 is about 73.0491318714.

It can be divided in two parts, 38980 and 3, that added together give a palindrome (38983).

The spelling of 389803 in words is "three hundred eighty-nine thousand, eight hundred three".