774097109 has 2 divisors, whose sum is σ = 774097110. Its totient is φ = 774097108.

The previous prime is 774097073. The next prime is 774097117. The reversal of 774097109 is 901790477.

It is a happy number.

774097109 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., 762974884 + 11122225 = 27622^2 + 3335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-774097109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 774097109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774097139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387048554 + 387048555.

It is an arithmetic number, because the mean of its divisors is an integer number (387048555).

Almost surely, 2^774097109 is an apocalyptic number.

It is an amenable number.

774097109 is a deficient number, since it is larger than the sum of its proper divisors (1).

774097109 is an equidigital number, since it uses as much as digits as its factorization.

774097109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 774097109 is about 27822.6006872111. The cubic root of 774097109 is about 918.1884283237.

The spelling of 774097109 in words is "seven hundred seventy-four million, ninety-seven thousand, one hundred nine".