1730065 has 4 divisors (see below), whose sum is σ = 2076084. Its totient is φ = 1384048.

The previous prime is 1730063. The next prime is 1730081. The reversal of 1730065 is 5600371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5600371 = 7 ⋅800053.

It can be written as a sum of positive squares in 2 ways, for example, as 1290496 + 439569 = 1136^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1730065 - 2¹ = 1730063 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1730063) 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, 173002 + ... + 173011.

It is an arithmetic number, because the mean of its divisors is an integer number (519021).

2^1730065 is an apocalyptic number.

It is an amenable number.

1730065 is a deficient number, since it is larger than the sum of its proper divisors (346019).

1730065 is an equidigital number, since it uses as much as digits as its factorization.

1730065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346018.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1730065 is about 1315.3193528569. The cubic root of 1730065 is about 120.0477818975.

The spelling of 1730065 in words is "one million, seven hundred thirty thousand, sixty-five".