804865522 has 8 divisors (see below), whose sum is σ = 1207419372. Its totient is φ = 402392400.

The previous prime is 804865499. The next prime is 804865541. The reversal of 804865522 is 225568408.

It can be written as a sum of positive squares in 2 ways, for example, as 678550401 + 126315121 = 26049^2 + 11239^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24772 + ... + 47152.

Almost surely, 2^804865522 is an apocalyptic number.

804865522 is a deficient number, since it is larger than the sum of its proper divisors (402553850).

804865522 is a wasteful number, since it uses less digits than its factorization.

804865522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40364.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 804865522 is about 28370.1519558849. The cubic root of 804865522 is about 930.1959436056.

The spelling of 804865522 in words is "eight hundred four million, eight hundred sixty-five thousand, five hundred twenty-two".