794619721 has 9 divisors (see below), whose sum is σ = 924583149. Its totient is φ = 680933484.

The previous prime is 794619719. The next prime is 794619757. The reversal of 794619721 is 127916497.

The square root of 794619721 is 28189.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 794619721 - 2¹ = 794619719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (794619821) 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 8 ways as a sum of consecutive naturals, for example, 195310 + ... + 199336.

It is an arithmetic number, because the mean of its divisors is an integer number (102731461).

Almost surely, 2^794619721 is an apocalyptic number.

794619721 is the 28189-th square number.

794619721 is the 14095-th centered octagonal number.

It is an amenable number.

794619721 is a deficient number, since it is larger than the sum of its proper divisors (129963428).

794619721 is an frugal number, since it uses more digits than its factorization.

794619721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068 (or 4034 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The cubic root of 794619721 is about 926.2319969571.

The spelling of 794619721 in words is "seven hundred ninety-four million, six hundred nineteen thousand, seven hundred twenty-one".