656222 has 16 divisors (see below), whose sum is σ = 1184640. Its totient is φ = 266328.

The previous prime is 656221. The next prime is 656237. The reversal of 656222 is 222656.

It is a happy number.

656222 is nontrivially palindromic in base 6.

It is a super-3 number, since 3×656222³ = 847761350333559144, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (74040).

2⁶⁵⁶²²² is an apocalyptic number.

656222 is a deficient number, since it is larger than the sum of its proper divisors (528418).

656222 is a wasteful number, since it uses less digits than its factorization.

656222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495.

The product of its digits is 1440, while the sum is 23.

The square root of 656222 is about 810.0753051414. The cubic root of 656222 is about 86.8994301840.

Adding to 656222 its reverse (222656), we get a palindrome (878878).

It can be divided in two parts, 656 and 222, that added together give a palindrome (878).

The spelling of 656222 in words is "six hundred fifty-six thousand, two hundred twenty-two".