791352217 has 2 divisors, whose sum is σ = 791352218. Its totient is φ = 791352216.

The previous prime is 791352197. The next prime is 791352229. The reversal of 791352217 is 712253197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777071376 + 14280841 = 27876^2 + 3779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791352217 is a prime.

It is not a weakly prime, because it can be changed into another prime (791352277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395676108 + 395676109.

It is an arithmetic number, because the mean of its divisors is an integer number (395676109).

Almost surely, 2^791352217 is an apocalyptic number.

It is an amenable number.

791352217 is a deficient number, since it is larger than the sum of its proper divisors (1).

791352217 is an equidigital number, since it uses as much as digits as its factorization.

791352217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 791352217 is about 28130.9832213522. The cubic root of 791352217 is about 924.9606867149.

The spelling of 791352217 in words is "seven hundred ninety-one million, three hundred fifty-two thousand, two hundred seventeen".