1806873 has 8 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 1199568.

The previous prime is 1806869. The next prime is 1806877. The reversal of 1806873 is 3786081.

It is an interprime number because it is at equal distance from previous prime (1806869) and next prime (1806877).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1806873 - 2² = 1806869 is a prime.

It is a Curzon number.

1806873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1806877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

2^1806873 is an apocalyptic number.

It is an amenable number.

1806873 is a deficient number, since it is larger than the sum of its proper divisors (612327).

1806873 is a wasteful number, since it uses less digits than its factorization.

1806873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1806873 is about 1344.1997619402. The cubic root of 1806873 is about 121.7986691003.

The spelling of 1806873 in words is "one million, eight hundred six thousand, eight hundred seventy-three".