675651728 has 10 divisors (see below), whose sum is σ = 1309075254. Its totient is φ = 337825856.

The previous prime is 675651707. The next prime is 675651731. The reversal of 675651728 is 827156576.

It can be written as a sum of positive squares in only one way, i.e., 499611904 + 176039824 = 22352^2 + 13268^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21114101 + ... + 21114132.

Almost surely, 2^675651728 is an apocalyptic number.

It is an amenable number.

675651728 is a deficient number, since it is larger than the sum of its proper divisors (633423526).

675651728 is a wasteful number, since it uses less digits than its factorization.

675651728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42228241 (or 42228235 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 675651728 is about 25993.3015986811. The cubic root of 675651728 is about 877.4875512773.

The spelling of 675651728 in words is "six hundred seventy-five million, six hundred fifty-one thousand, seven hundred twenty-eight".