791791771 has 2 divisors, whose sum is σ = 791791772. Its totient is φ = 791791770.

The previous prime is 791791753. The next prime is 791791783. The reversal of 791791771 is 177197197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791791771 - 2¹¹ = 791789723 is a prime.

It is not a weakly prime, because it can be changed into another prime (791791471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395895885 + 395895886.

It is an arithmetic number, because the mean of its divisors is an integer number (395895886).

Almost surely, 2^791791771 is an apocalyptic number.

791791771 is a deficient number, since it is larger than the sum of its proper divisors (1).

791791771 is an equidigital number, since it uses as much as digits as its factorization.

791791771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194481, while the sum is 49.

The square root of 791791771 is about 28138.7947680778. The cubic root of 791791771 is about 925.1319104793.

The spelling of 791791771 in words is "seven hundred ninety-one million, seven hundred ninety-one thousand, seven hundred seventy-one".