1804089 has 8 divisors (see below), whose sum is σ = 2749120. Its totient is φ = 1030896.

The previous prime is 1804079. The next prime is 1804093. The reversal of 1804089 is 9804081.

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 1804089 - 2⁴ = 1804073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1804079) 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, 42934 + ... + 42975.

It is an arithmetic number, because the mean of its divisors is an integer number (343640).

2^1804089 is an apocalyptic number.

It is an amenable number.

1804089 is a deficient number, since it is larger than the sum of its proper divisors (945031).

1804089 is an equidigital number, since it uses as much as digits as its factorization.

1804089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85919.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1804089 is about 1343.1638023711. The cubic root of 1804089 is about 121.7360818207.

The spelling of 1804089 in words is "one million, eight hundred four thousand, eighty-nine".