791868859 has 2 divisors, whose sum is σ = 791868860. Its totient is φ = 791868858.

The previous prime is 791868811. The next prime is 791868881. The reversal of 791868859 is 958868197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791868859 - 2¹¹ = 791866811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 791868797 and 791868806.

It is not a weakly prime, because it can be changed into another prime (791868059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395934429 + 395934430.

It is an arithmetic number, because the mean of its divisors is an integer number (395934430).

Almost surely, 2^791868859 is an apocalyptic number.

791868859 is a deficient number, since it is larger than the sum of its proper divisors (1).

791868859 is an equidigital number, since it uses as much as digits as its factorization.

791868859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 61.

The square root of 791868859 is about 28140.1645162213. The cubic root of 791868859 is about 925.1619327895.

The spelling of 791868859 in words is "seven hundred ninety-one million, eight hundred sixty-eight thousand, eight hundred fifty-nine".