1845873 has 6 divisors (see below), whose sum is σ = 2666274. Its totient is φ = 1230576.

The previous prime is 1845841. The next prime is 1845881. The reversal of 1845873 is 3785481.

It can be written as a sum of positive squares in only one way, i.e., 1557504 + 288369 = 1248^2 + 537^2 .

It is not a de Polignac number, because 1845873 - 2⁵ = 1845841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1845073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102540 + ... + 102557.

It is an arithmetic number, because the mean of its divisors is an integer number (444379).

2^1845873 is an apocalyptic number.

It is an amenable number.

1845873 is a deficient number, since it is larger than the sum of its proper divisors (820401).

1845873 is a wasteful number, since it uses less digits than its factorization.

1845873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205103 (or 205100 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 1845873 is about 1358.6290884564. The cubic root of 1845873 is about 122.6687498005.

The spelling of 1845873 in words is "one million, eight hundred forty-five thousand, eight hundred seventy-three".