1804069 has 4 divisors (see below), whose sum is σ = 1899040. Its totient is φ = 1709100.

The previous prime is 1804063. The next prime is 1804073. The reversal of 1804069 is 9604081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1804069 - 2⁵ = 1804037 is a prime.

It is a super-4 number, since 4×1804069⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47457 + ... + 47494.

It is an arithmetic number, because the mean of its divisors is an integer number (474760).

2^1804069 is an apocalyptic number.

1804069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1804069 is a deficient number, since it is larger than the sum of its proper divisors (94971).

1804069 is an equidigital number, since it uses as much as digits as its factorization.

1804069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94970.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1804069 is about 1343.1563572421. The cubic root of 1804069 is about 121.7356319665.

The spelling of 1804069 in words is "one million, eight hundred four thousand, sixty-nine".