1728968 has 16 divisors (see below), whose sum is σ = 3432780. Its totient is φ = 813568.

The previous prime is 1728967. The next prime is 1728971. The reversal of 1728968 is 8698271.

It can be written as a sum of positive squares in 2 ways, for example, as 1435204 + 293764 = 1198^2 + 542^2 .

It is not an unprimeable number, because it can be changed into a prime (1728967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6221 + ... + 6492.

2^1728968 is an apocalyptic number.

It is an amenable number.

1728968 is a deficient number, since it is larger than the sum of its proper divisors (1703812).

1728968 is a wasteful number, since it uses less digits than its factorization.

1728968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736 (or 12732 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 1728968 is about 1314.9022777378. The cubic root of 1728968 is about 120.0224032246.

The spelling of 1728968 in words is "one million, seven hundred twenty-eight thousand, nine hundred sixty-eight".