772628 has 12 divisors (see below), whose sum is σ = 1359540. Its totient is φ = 384192.

The previous prime is 772619. The next prime is 772631. The reversal of 772628 is 826277.

It can be written as a sum of positive squares in 2 ways, for example, as 293764 + 478864 = 542^2 + 692^2 .

It is a junction number, because it is equal to n+sod(n) for n = 772594 and 772603.

It is a congruent number.

It is an unprimeable number.

772628 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 in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (113295).

2⁷⁷²⁶²⁸ is an apocalyptic number.

It is an amenable number.

772628 is a deficient number, since it is larger than the sum of its proper divisors (586912).

772628 is a wasteful number, since it uses less digits than its factorization.

772628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1064 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 772628 is about 878.9926052021. The cubic root of 772628 is about 91.7607203604.

The spelling of 772628 in words is "seven hundred seventy-two thousand, six hundred twenty-eight".