804691017 has 20 divisors (see below), whose sum is σ = 1294537860. Its totient is φ = 495193824.

The previous prime is 804691007. The next prime is 804691081. The reversal of 804691017 is 710196408.

It can be written as a sum of positive squares in 2 ways, for example, as 342398016 + 462293001 = 18504^2 + 21501^2 .

It is not a de Polignac number, because 804691017 - 2⁷ = 804690889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804691007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 381042 + ... + 383147.

It is an arithmetic number, because the mean of its divisors is an integer number (64726893).

Almost surely, 2^804691017 is an apocalyptic number.

It is an amenable number.

804691017 is a deficient number, since it is larger than the sum of its proper divisors (489846843).

804691017 is a wasteful number, since it uses less digits than its factorization.

804691017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764214 (or 764205 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 804691017 is about 28367.0762857225. The cubic root of 804691017 is about 930.1287126743.

The spelling of 804691017 in words is "eight hundred four million, six hundred ninety-one thousand, seventeen".