796158721 has 6 divisors (see below), whose sum is σ = 824560022. Its totient is φ = 768704160.

The previous prime is 796158707. The next prime is 796158799. The reversal of 796158721 is 127851697.

It is a happy number.

796158721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 61152400 + 735006321 = 7820^2 + 27111^2 .

It is not a de Polignac number, because 796158721 - 2¹⁷ = 796027649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (796158821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472500 + ... + 474181.

Almost surely, 2^796158721 is an apocalyptic number.

It is an amenable number.

796158721 is a deficient number, since it is larger than the sum of its proper divisors (28401301).

796158721 is an equidigital number, since it uses as much as digits as its factorization.

796158721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946739 (or 946710 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The square root of 796158721 is about 28216.2846774695. The cubic root of 796158721 is about 926.8295791389.

The spelling of 796158721 in words is "seven hundred ninety-six million, one hundred fifty-eight thousand, seven hundred twenty-one".