804804505 has 8 divisors (see below), whose sum is σ = 966558600. Its totient is φ = 643314816.

The previous prime is 804804503. The next prime is 804804541. The reversal of 804804505 is 505408408.

It can be written as a sum of positive squares in 4 ways, for example, as 530703369 + 274101136 = 23037^2 + 16556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 804804505 - 2¹ = 804804503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804804503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59340 + ... + 71629.

It is an arithmetic number, because the mean of its divisors is an integer number (120819825).

Almost surely, 2^804804505 is an apocalyptic number.

It is an amenable number.

804804505 is a deficient number, since it is larger than the sum of its proper divisors (161754095).

804804505 is a wasteful number, since it uses less digits than its factorization.

804804505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132203.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 804804505 is about 28369.0765623416. The cubic root of 804804505 is about 930.1724369043.

The spelling of 804804505 in words is "eight hundred four million, eight hundred four thousand, five hundred five".