794809521 has 12 divisors (see below), whose sum is σ = 1252427280. Its totient is φ = 481702680.

The previous prime is 794809513. The next prime is 794809523. The reversal of 794809521 is 125908497.

It is not a de Polignac number, because 794809521 - 2³ = 794809513 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (794809523) 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 11 ways as a sum of consecutive naturals, for example, 4014091 + ... + 4014288.

It is an arithmetic number, because the mean of its divisors is an integer number (104368940).

Almost surely, 2^794809521 is an apocalyptic number.

It is an amenable number.

794809521 is a deficient number, since it is larger than the sum of its proper divisors (457617759).

794809521 is a wasteful number, since it uses less digits than its factorization.

794809521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028396 (or 8028393 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 794809521 is about 28192.3663604175. The cubic root of 794809521 is about 926.3057365642.

The spelling of 794809521 in words is "seven hundred ninety-four million, eight hundred nine thousand, five hundred twenty-one".