722622 has 16 divisors (see below), whose sum is σ = 1495440. Its totient is φ = 232512.

The previous prime is 722611. The next prime is 722633. The reversal of 722622 is 226227.

It is an interprime number because it is at equal distance from previous prime (722611) and next prime (722633).

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 722622.

It is an unprimeable number.

722622 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, 1903 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (93465).

2⁷²²⁶²² is an apocalyptic number.

722622 is an abundant number, since it is smaller than the sum of its proper divisors (772818).

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

722622 is a wasteful number, since it uses less digits than its factorization.

722622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187.

The product of its digits is 672, while the sum is 21.

The square root of 722622 is about 850.0717616766. The cubic root of 722622 is about 89.7367616769.

Adding to 722622 its reverse (226227), we get a palindrome (948849).

The spelling of 722622 in words is "seven hundred twenty-two thousand, six hundred twenty-two".