1728275 has 12 divisors (see below), whose sum is σ = 2174712. Its totient is φ = 1362240.

The previous prime is 1728269. The next prime is 1728317. The reversal of 1728275 is 5728271.

It is not a de Polignac number, because 1728275 - 2⁸ = 1728019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1352 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (181226).

2^1728275 is an apocalyptic number.

1728275 is a deficient number, since it is larger than the sum of its proper divisors (446437).

1728275 is an equidigital number, since it uses as much as digits as its factorization.

1728275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1025 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 1728275 is about 1314.6387336451. The cubic root of 1728275 is about 120.0063654031.

The spelling of 1728275 in words is "one million, seven hundred twenty-eight thousand, two hundred seventy-five".