675220 has 72 divisors (see below), whose sum is σ = 1809864. Its totient is φ = 209664.

The previous prime is 675197. The next prime is 675221. The reversal of 675220 is 22576.

It can be written as a sum of positive squares in 4 ways, for example, as 38416 + 636804 = 196^2 + 798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 675191 and 675200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12714 + ... + 12766.

It is an arithmetic number, because the mean of its divisors is an integer number (25137).

2⁶⁷⁵²²⁰ is an apocalyptic number.

675220 is the 520-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904932).

675220 is an abundant number, since it is smaller than the sum of its proper divisors (1134644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

675220 is a wasteful number, since it uses less digits than its factorization.

675220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 675220 is about 821.7177130864. The cubic root of 675220 is about 87.7300612431.

Adding to 675220 its reverse (22576), we get a palindrome (697796).

The spelling of 675220 in words is "six hundred seventy-five thousand, two hundred twenty".