793721 has 2 divisors, whose sum is σ = 793722. Its totient is φ = 793720.

The previous prime is 793717. The next prime is 793733. The reversal of 793721 is 127397.

It is a happy number.

793721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 19321 = 880^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 793721 - 2² = 793717 is a prime.

It is not a weakly prime, because it can be changed into another prime (793711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396860 + 396861.

It is an arithmetic number, because the mean of its divisors is an integer number (396861).

2⁷⁹³⁷²¹ is an apocalyptic number.

It is an amenable number.

793721 is a deficient number, since it is larger than the sum of its proper divisors (1).

793721 is an equidigital number, since it uses as much as digits as its factorization.

793721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 29.

The square root of 793721 is about 890.9102087192. The cubic root of 793721 is about 92.5882673397.

The spelling of 793721 in words is "seven hundred ninety-three thousand, seven hundred twenty-one".