775328 has 12 divisors (see below), whose sum is σ = 1526490. Its totient is φ = 387648.

The previous prime is 775309. The next prime is 775343. The reversal of 775328 is 823577.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 21904 = 868^2 + 148^2 .

It is a super-2 number, since 2×775328² = 1202267015168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 24229 = 775328 / (7 + 7 + 5 + 3 + 2 + 8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 775294 and 775303.

It is an unprimeable number.

775328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12083 + ... + 12146.

2⁷⁷⁵³²⁸ is an apocalyptic number.

It is an amenable number.

775328 is a deficient number, since it is larger than the sum of its proper divisors (751162).

775328 is a wasteful number, since it uses less digits than its factorization.

775328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24239 (or 24231 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 775328 is about 880.5271148579. The cubic root of 775328 is about 91.8674840752.

The spelling of 775328 in words is "seven hundred seventy-five thousand, three hundred twenty-eight".