774333649 has 4 divisors (see below), whose sum is σ = 774612900. Its totient is φ = 774054400.

The previous prime is 774333647. The next prime is 774333653. The reversal of 774333649 is 946333477.

774333649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946333477 = 653 ⋅1449209.

It can be written as a sum of positive squares in 2 ways, for example, as 295599249 + 478734400 = 17193^2 + 21880^2 .

It is a cyclic number.

It is not a de Polignac number, because 774333649 - 2¹ = 774333647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 774333599 and 774333608.

It is not an unprimeable number, because it can be changed into a prime (774333647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135424 + ... + 141025.

It is an arithmetic number, because the mean of its divisors is an integer number (193653225).

Almost surely, 2^774333649 is an apocalyptic number.

It is an amenable number.

774333649 is a deficient number, since it is larger than the sum of its proper divisors (279251).

774333649 is a wasteful number, since it uses less digits than its factorization.

774333649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279250.

The product of its digits is 1143072, while the sum is 46.

The square root of 774333649 is about 27826.8512232340. The cubic root of 774333649 is about 918.2819420745.

The spelling of 774333649 in words is "seven hundred seventy-four million, three hundred thirty-three thousand, six hundred forty-nine".