804019 has 4 divisors (see below), whose sum is σ = 807760. Its totient is φ = 800280.

The previous prime is 804017. The next prime is 804031. The reversal of 804019 is 910408.

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 804019 - 2¹ = 804017 is a prime.

It is a super-2 number, since 2×804019² = 1292893104722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804017) 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, 1527 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (201940).

2⁸⁰⁴⁰¹⁹ is an apocalyptic number.

804019 is a deficient number, since it is larger than the sum of its proper divisors (3741).

804019 is a wasteful number, since it uses less digits than its factorization.

804019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 804019 is about 896.6710656646. The cubic root of 804019 is about 92.9869716208.

The spelling of 804019 in words is "eight hundred four thousand, nineteen".