804519 has 16 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 528408.

The previous prime is 804511. The next prime is 804521. The reversal of 804519 is 915408.

804519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 804519 - 2³ = 804511 is a prime.

It is a super-2 number, since 2×804519² = 1294501642722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 804492 and 804501.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804519.

It is not an unprimeable number, because it can be changed into a prime (804511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2062 + ... + 2420.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁸⁰⁴⁵¹⁹ is an apocalyptic number.

804519 is a deficient number, since it is larger than the sum of its proper divisors (405081).

804519 is a wasteful number, since it uses less digits than its factorization.

804519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 804519 is about 896.9498313730. The cubic root of 804519 is about 93.0062430773.

Adding to 804519 its sum of digits (27), we get a triangular number (804546 = T₁₂₆₈).

Subtracting 804519 from its reverse (915408), we obtain a square (110889 = 333²).

The spelling of 804519 in words is "eight hundred four thousand, five hundred nineteen".