777328 has 20 divisors (see below), whose sum is σ = 1585960. Its totient is φ = 368064.

The previous prime is 777317. The next prime is 777349. The reversal of 777328 is 823777.

It is a junction number, because it is equal to n+sod(n) for n = 777293 and 777302.

It is a congruent number.

It is an unprimeable number.

777328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 1582.

It is an arithmetic number, because the mean of its divisors is an integer number (79298).

2⁷⁷⁷³²⁸ is an apocalyptic number.

It is an amenable number.

777328 is an abundant number, since it is smaller than the sum of its proper divisors (808632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

777328 is a wasteful number, since it uses less digits than its factorization.

777328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584 (or 2578 counting only the distinct ones).

The product of its digits is 16464, while the sum is 34.

The square root of 777328 is about 881.6620667807. The cubic root of 777328 is about 91.9464086118.

The spelling of 777328 in words is "seven hundred seventy-seven thousand, three hundred twenty-eight".