774728 has 16 divisors (see below), whose sum is σ = 1467180. Its totient is φ = 383488.

The previous prime is 774703. The next prime is 774733. The reversal of 774728 is 827477.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 3844 = 878^2 + 62^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476 + ... + 1332.

2⁷⁷⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

774728 is a deficient number, since it is larger than the sum of its proper divisors (692452).

774728 is a wasteful number, since it uses less digits than its factorization.

774728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 972 counting only the distinct ones).

The product of its digits is 21952, while the sum is 35.

The square root of 774728 is about 880.1863439068. The cubic root of 774728 is about 91.8437802513.

The spelling of 774728 in words is "seven hundred seventy-four thousand, seven hundred twenty-eight".