804815066 has 16 divisors (see below), whose sum is σ = 1330013088. Its totient is φ = 362202000.

The previous prime is 804815059. The next prime is 804815069. The reversal of 804815066 is 660518408.

804815066 = 8184² + 8185² + ... + 8195².

It is not an unprimeable number, because it can be changed into a prime (804815069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178880 + ... + 183323.

It is an arithmetic number, because the mean of its divisors is an integer number (83125818).

Almost surely, 2^804815066 is an apocalyptic number.

804815066 is a deficient number, since it is larger than the sum of its proper divisors (525198022).

804815066 is a wasteful number, since it uses less digits than its factorization.

804815066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362317.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 804815066 is about 28369.2626975041. The cubic root of 804815066 is about 930.1765055976.

The spelling of 804815066 in words is "eight hundred four million, eight hundred fifteen thousand, sixty-six".