804219 has 16 divisors (see below), whose sum is σ = 1223712. Its totient is φ = 465408.

The previous prime is 804211. The next prime is 804239. The reversal of 804219 is 912408.

It is not a de Polignac number, because 804219 - 2³ = 804211 is a prime.

It is a super-2 number, since 2×804219² = 1293536399922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804211) 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 15 ways as a sum of consecutive naturals, for example, 57 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (76482).

2⁸⁰⁴²¹⁹ is an apocalyptic number.

804219 is a deficient number, since it is larger than the sum of its proper divisors (419493).

804219 is a wasteful number, since it uses less digits than its factorization.

804219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 804219 is about 896.7825823465. The cubic root of 804219 is about 92.9946811619.

The spelling of 804219 in words is "eight hundred four thousand, two hundred nineteen".