774416869 has 2 divisors, whose sum is σ = 774416870. Its totient is φ = 774416868.

The previous prime is 774416833. The next prime is 774416927. The reversal of 774416869 is 968614477.

774416869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598536225 + 175880644 = 24465^2 + 13262^2 .

It is an emirp because it is prime and its reverse (968614477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 774416869 - 2¹⁷ = 774285797 is a prime.

It is a super-2 number, since 2×774416869² = 1199442973983526322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774419869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387208434 + 387208435.

It is an arithmetic number, because the mean of its divisors is an integer number (387208435).

Almost surely, 2^774416869 is an apocalyptic number.

It is an amenable number.

774416869 is a deficient number, since it is larger than the sum of its proper divisors (1).

774416869 is an equidigital number, since it uses as much as digits as its factorization.

774416869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 774416869 is about 27828.3465013644. The cubic root of 774416869 is about 918.3148377502.

The spelling of 774416869 in words is "seven hundred seventy-four million, four hundred sixteen thousand, eight hundred sixty-nine".