800103 has 4 divisors (see below), whose sum is σ = 1066808. Its totient is φ = 533400.

The previous prime is 800089. The next prime is 800113. The reversal of 800103 is 301008.

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

It is not a de Polignac number, because 800103 - 2¹⁴ = 783719 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133348 + ... + 133353.

It is an arithmetic number, because the mean of its divisors is an integer number (266702).

2⁸⁰⁰¹⁰³ is an apocalyptic number.

800103 is a deficient number, since it is larger than the sum of its proper divisors (266705).

800103 is a wasteful number, since it uses less digits than its factorization.

800103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266704.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 800103 is about 894.4847678971. The cubic root of 800103 is about 92.8357605317.

It can be divided in two parts, 800 and 103, that added together give a triangular number (903 = T₄₂).

The spelling of 800103 in words is "eight hundred thousand, one hundred three".