2103873 has 4 divisors (see below), whose sum is σ = 2805168. Its totient is φ = 1402580.

The previous prime is 2103859. The next prime is 2103887. The reversal of 2103873 is 3783012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2103859) and next prime (2103887).

It is a cyclic number.

It is not a de Polignac number, because 2103873 - 2⁸ = 2103617 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2103473) 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, 350643 + ... + 350648.

It is an arithmetic number, because the mean of its divisors is an integer number (701292).

2^2103873 is an apocalyptic number.

It is an amenable number.

2103873 is a deficient number, since it is larger than the sum of its proper divisors (701295).

2103873 is an equidigital number, since it uses as much as digits as its factorization.

2103873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701294.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2103873 is about 1450.4733710069. The cubic root of 2103873 is about 128.1365932797.

Adding to 2103873 its reverse (3783012), we get a palindrome (5886885).

The spelling of 2103873 in words is "two million, one hundred three thousand, eight hundred seventy-three".