791343823 has 2 divisors, whose sum is σ = 791343824. Its totient is φ = 791343822.

The previous prime is 791343809. The next prime is 791343853. The reversal of 791343823 is 328343197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 791343823 - 2²¹ = 789246671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791343853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395671911 + 395671912.

It is an arithmetic number, because the mean of its divisors is an integer number (395671912).

Almost surely, 2^791343823 is an apocalyptic number.

791343823 is a deficient number, since it is larger than the sum of its proper divisors (1).

791343823 is an equidigital number, since it uses as much as digits as its factorization.

791343823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 791343823 is about 28130.8340260292. The cubic root of 791343823 is about 924.9574163011.

The spelling of 791343823 in words is "seven hundred ninety-one million, three hundred forty-three thousand, eight hundred twenty-three".