398103 has 4 divisors (see below), whose sum is σ = 530808. Its totient is φ = 265400.

The previous prime is 398087. The next prime is 398113. The reversal of 398103 is 301893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398103 - 2⁴ = 398087 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398103.

It is not an unprimeable number, because it can be changed into a prime (398113) 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, 66348 + ... + 66353.

It is an arithmetic number, because the mean of its divisors is an integer number (132702).

2³⁹⁸¹⁰³ is an apocalyptic number.

398103 is a deficient number, since it is larger than the sum of its proper divisors (132705).

398103 is a wasteful number, since it uses less digits than its factorization.

398103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132704.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 398103 is about 630.9540395306. The cubic root of 398103 is about 73.5639685599.

Adding to 398103 its reverse (301893), we get a palindrome (699996).

The spelling of 398103 in words is "three hundred ninety-eight thousand, one hundred three".