1804253 has 4 divisors (see below), whose sum is σ = 1968288. Its totient is φ = 1640220.

The previous prime is 1804249. The next prime is 1804267. The reversal of 1804253 is 3524081.

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 1804253 - 2² = 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 (1804213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82001 + ... + 82022.

It is an arithmetic number, because the mean of its divisors is an integer number (492072).

2^1804253 is an apocalyptic number.

It is an amenable number.

1804253 is a deficient number, since it is larger than the sum of its proper divisors (164035).

1804253 is a wasteful number, since it uses less digits than its factorization.

1804253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164034.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1804253 is about 1343.2248508720. The cubic root of 1804253 is about 121.7397704991.

The spelling of 1804253 in words is "one million, eight hundred four thousand, two hundred fifty-three".