791918927 has 2 divisors, whose sum is σ = 791918928. Its totient is φ = 791918926.

The previous prime is 791918923. The next prime is 791918929. The reversal of 791918927 is 729819197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791918927 - 2² = 791918923 is a prime.

Together with 791918929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791918923) 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, 395959463 + 395959464.

It is an arithmetic number, because the mean of its divisors is an integer number (395959464).

Almost surely, 2^791918927 is an apocalyptic number.

791918927 is a deficient number, since it is larger than the sum of its proper divisors (1).

791918927 is an equidigital number, since it uses as much as digits as its factorization.

791918927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 53.

The square root of 791918927 is about 28141.0541202706. The cubic root of 791918927 is about 925.1814309808.

The spelling of 791918927 in words is "seven hundred ninety-one million, nine hundred eighteen thousand, nine hundred twenty-seven".