2043873 has 24 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 1255824.

The previous prime is 2043869. The next prime is 2043907. The reversal of 2043873 is 3783402.

It is not a de Polignac number, because 2043873 - 2² = 2043869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2836 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

2^2043873 is an apocalyptic number.

It is an amenable number.

2043873 is a deficient number, since it is larger than the sum of its proper divisors (1258335).

2043873 is an equidigital number, since it uses as much as digits as its factorization.

2043873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2043873 is about 1429.6408639935. The cubic root of 2043873 is about 126.9067246575.

It can be divided in two parts, 2043 and 873, that added together give a square (2916 = 54²).

The spelling of 2043873 in words is "two million, forty-three thousand, eight hundred seventy-three".