794673721 has 8 divisors (see below), whose sum is σ = 844296264. Its totient is φ = 745370880.

The previous prime is 794673683. The next prime is 794673749. The reversal of 794673721 is 127376497.

It can be written as a sum of positive squares in 4 ways, for example, as 351150121 + 443523600 = 18739^2 + 21060^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 794673721 - 2¹¹ = 794671673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (794673821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74790 + ... + 84751.

It is an arithmetic number, because the mean of its divisors is an integer number (105537033).

Almost surely, 2^794673721 is an apocalyptic number.

It is an amenable number.

794673721 is a deficient number, since it is larger than the sum of its proper divisors (49622543).

794673721 is a wasteful number, since it uses less digits than its factorization.

794673721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159851.

The product of its digits is 444528, while the sum is 46.

The square root of 794673721 is about 28189.9578041543. The cubic root of 794673721 is about 926.2529778085.

The spelling of 794673721 in words is "seven hundred ninety-four million, six hundred seventy-three thousand, seven hundred twenty-one".