793716857 has 2 divisors, whose sum is σ = 793716858. Its totient is φ = 793716856.

The previous prime is 793716787. The next prime is 793716899. The reversal of 793716857 is 758617397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670861801 + 122855056 = 25901^2 + 11084^2 .

It is an emirp because it is prime and its reverse (758617397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 793716857 - 2²⁶ = 726607993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 793716799 and 793716808.

It is not a weakly prime, because it can be changed into another prime (793710857) 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 as a sum of consecutive naturals, namely, 396858428 + 396858429.

It is an arithmetic number, because the mean of its divisors is an integer number (396858429).

Almost surely, 2^793716857 is an apocalyptic number.

It is an amenable number.

793716857 is a deficient number, since it is larger than the sum of its proper divisors (1).

793716857 is an equidigital number, since it uses as much as digits as its factorization.

793716857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 53.

The square root of 793716857 is about 28172.9809746857. The cubic root of 793716857 is about 925.8810624452.

The spelling of 793716857 in words is "seven hundred ninety-three million, seven hundred sixteen thousand, eight hundred fifty-seven".