774349389 has 96 divisors (see below), whose sum is σ = 1355827200. Its totient is φ = 436700160.

The previous prime is 774349379. The next prime is 774349409. The reversal of 774349389 is 983943477.

774349389 is a `hidden beast` number, since 7 + 74 + 3 + 493 + 89 = 666.

774349389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 774349389 - 2⁹ = 774348877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774349319) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4012077 + ... + 4012269.

It is an arithmetic number, because the mean of its divisors is an integer number (14123200).

Almost surely, 2^774349389 is an apocalyptic number.

774349389 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

774349389 is a deficient number, since it is larger than the sum of its proper divisors (581477811).

774349389 is a wasteful number, since it uses less digits than its factorization.

774349389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 305 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 774349389 is about 27827.1340421539. The cubic root of 774349389 is about 918.2881640521.

The spelling of 774349389 in words is "seven hundred seventy-four million, three hundred forty-nine thousand, three hundred eighty-nine".