791198761 has 2 divisors, whose sum is σ = 791198762. Its totient is φ = 791198760.

The previous prime is 791198729. The next prime is 791198773. The reversal of 791198761 is 167891197.

791198761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655616025 + 135582736 = 25605^2 + 11644^2 .

It is an emirp because it is prime and its reverse (167891197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 791198761 - 2⁵ = 791198729 is a prime.

It is not a weakly prime, because it can be changed into another prime (791195761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395599380 + 395599381.

It is an arithmetic number, because the mean of its divisors is an integer number (395599381).

Almost surely, 2^791198761 is an apocalyptic number.

It is an amenable number.

791198761 is a deficient number, since it is larger than the sum of its proper divisors (1).

791198761 is an equidigital number, since it uses as much as digits as its factorization.

791198761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 49.

The square root of 791198761 is about 28128.2555626900. The cubic root of 791198761 is about 924.9008945684.

The spelling of 791198761 in words is "seven hundred ninety-one million, one hundred ninety-eight thousand, seven hundred sixty-one".