804812773 has 4 divisors (see below), whose sum is σ = 847171360. Its totient is φ = 762454188.

The previous prime is 804812713. The next prime is 804812839. The reversal of 804812773 is 377218408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804812773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804812713) 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, 21179265 + ... + 21179302.

It is an arithmetic number, because the mean of its divisors is an integer number (211792840).

Almost surely, 2^804812773 is an apocalyptic number.

It is an amenable number.

804812773 is a deficient number, since it is larger than the sum of its proper divisors (42358587).

804812773 is a wasteful number, since it uses less digits than its factorization.

804812773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42358586.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 804812773 is about 28369.2222840176. Note that the first 4 decimals coincide. The cubic root of 804812773 is about 930.1756222076.

The spelling of 804812773 in words is "eight hundred four million, eight hundred twelve thousand, seven hundred seventy-three".