804403 has 4 divisors (see below), whose sum is σ = 846760. Its totient is φ = 762048.

The previous prime is 804383. The next prime is 804409. The reversal of 804403 is 304408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 804403 - 2⁵ = 804371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 42337 = 804403 / (8 + 0 + 4 + 4 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804409) 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, 21150 + ... + 21187.

It is an arithmetic number, because the mean of its divisors is an integer number (211690).

2⁸⁰⁴⁴⁰³ is an apocalyptic number.

804403 is a deficient number, since it is larger than the sum of its proper divisors (42357).

804403 is a wasteful number, since it uses less digits than its factorization.

804403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42356.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 804403 is about 896.8851654476. The cubic root of 804403 is about 93.0017728109.

The spelling of 804403 in words is "eight hundred four thousand, four hundred three".