675217 has 4 divisors (see below), whose sum is σ = 682276. Its totient is φ = 668160.

The previous prime is 675197. The next prime is 675221. The reversal of 675217 is 712576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 421201 + 254016 = 649^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 675217 - 2¹⁹ = 150929 is a prime.

It is a Duffinian number.

675217 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (675247) 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, 3384 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (170569).

2⁶⁷⁵²¹⁷ is an apocalyptic number.

It is an amenable number.

675217 is a deficient number, since it is larger than the sum of its proper divisors (7059).

675217 is an equidigital number, since it uses as much as digits as its factorization.

675217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058.

The product of its digits is 2940, while the sum is 28.

The square root of 675217 is about 821.7158876400. The cubic root of 675217 is about 87.7299313148.

It can be divided in two parts, 67521 and 7, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 675217 in words is "six hundred seventy-five thousand, two hundred seventeen".