793728161 has 4 divisors (see below), whose sum is σ = 793827972. Its totient is φ = 793628352.

The previous prime is 793728127. The next prime is 793728191. The reversal of 793728161 is 161827397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161827397 = 199 ⋅813203.

It can be written as a sum of positive squares in 2 ways, for example, as 732027136 + 61701025 = 27056^2 + 7855^2 .

It is a cyclic number.

It is not a de Polignac number, because 793728161 - 2¹⁴ = 793711777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (793728191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36836 + ... + 54261.

It is an arithmetic number, because the mean of its divisors is an integer number (198456993).

Almost surely, 2^793728161 is an apocalyptic number.

It is an amenable number.

793728161 is a deficient number, since it is larger than the sum of its proper divisors (99811).

793728161 is an equidigital number, since it uses as much as digits as its factorization.

793728161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99810.

The product of its digits is 127008, while the sum is 44.

The square root of 793728161 is about 28173.1815917195. The cubic root of 793728161 is about 925.8854578454.

The spelling of 793728161 in words is "seven hundred ninety-three million, seven hundred twenty-eight thousand, one hundred sixty-one".