607221 has 24 divisors (see below), whose sum is σ = 954720. Its totient is φ = 370656.

The previous prime is 607219. The next prime is 607249. The reversal of 607221 is 122706.

It is a happy number.

It is not a de Polignac number, because 607221 - 2¹ = 607219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 607194 and 607203.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 607221.

It is not an unprimeable number, because it can be changed into a prime (607261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9030 + ... + 9096.

It is an arithmetic number, because the mean of its divisors is an integer number (39780).

2⁶⁰⁷²²¹ is an apocalyptic number.

It is an amenable number.

607221 is a deficient number, since it is larger than the sum of its proper divisors (347499).

607221 is a wasteful number, since it uses less digits than its factorization.

607221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 607221 is about 779.2438642684. The cubic root of 607221 is about 84.6802752287.

Adding to 607221 its reverse (122706), we get a palindrome (729927).

It can be divided in two parts, 607 and 221, that added together give a palindrome (828).

The spelling of 607221 in words is "six hundred seven thousand, two hundred twenty-one".