1804313 has 8 divisors (see below), whose sum is σ = 2070528. Its totient is φ = 1540224.

The previous prime is 1804307. The next prime is 1804321. The reversal of 1804313 is 3134081.

It is a happy number.

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

It is not a de Polignac number, because 1804313 - 2⁶ = 1804249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804303) 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, 2345 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (258816).

2^1804313 is an apocalyptic number.

It is an amenable number.

1804313 is a deficient number, since it is larger than the sum of its proper divisors (266215).

1804313 is an equidigital number, since it uses as much as digits as its factorization.

1804313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1804313 is about 1343.2471849961. The cubic root of 1804313 is about 121.7411199597.

Adding to 1804313 its reverse (3134081), we get a palindrome (4938394).

The spelling of 1804313 in words is "one million, eight hundred four thousand, three hundred thirteen".