706222 has 16 divisors (see below), whose sum is σ = 1181952. Its totient is φ = 313720.

The previous prime is 706213. The next prime is 706229. The reversal of 706222 is 222607.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 706222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706229) by changing a digit.

706222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 693 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (73872).

2⁷⁰⁶²²² is an apocalyptic number.

706222 is a deficient number, since it is larger than the sum of its proper divisors (475730).

706222 is a wasteful number, since it uses less digits than its factorization.

706222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 706222 is about 840.3701565382. The cubic root of 706222 is about 89.0526978234.

Adding to 706222 its reverse (222607), we get a palindrome (928829).

The spelling of 706222 in words is "seven hundred six thousand, two hundred twenty-two".