675728 has 20 divisors (see below), whose sum is σ = 1322460. Its totient is φ = 334464.

The previous prime is 675713. The next prime is 675739. The reversal of 675728 is 827576.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 565504 = 332^2 + 752^2 .

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, 2378 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (66123).

2⁶⁷⁵⁷²⁸ is an apocalyptic number.

It is an amenable number.

675728 is a deficient number, since it is larger than the sum of its proper divisors (646732).

675728 is a wasteful number, since it uses less digits than its factorization.

675728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 428 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 675728 is about 822.0267635546. The cubic root of 675728 is about 87.7520568886.

The spelling of 675728 in words is "six hundred seventy-five thousand, seven hundred twenty-eight".