791859559 has 2 divisors, whose sum is σ = 791859560. Its totient is φ = 791859558.

The previous prime is 791859557. The next prime is 791859613. The reversal of 791859559 is 955958197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 791859559 - 2¹ = 791859557 is a prime.

It is a super-2 number, since 2×791859559² = 1254083122359348962, which contains 22 as substring.

Together with 791859557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791859557) 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, 395929779 + 395929780.

It is an arithmetic number, because the mean of its divisors is an integer number (395929780).

Almost surely, 2^791859559 is an apocalyptic number.

791859559 is a deficient number, since it is larger than the sum of its proper divisors (1).

791859559 is an equidigital number, since it uses as much as digits as its factorization.

791859559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103000, while the sum is 58.

The square root of 791859559 is about 28139.9992714996. Note that the first 3 decimals coincide. The cubic root of 791859559 is about 925.1583109610.

The spelling of 791859559 in words is "seven hundred ninety-one million, eight hundred fifty-nine thousand, five hundred fifty-nine".