622722 has 8 divisors (see below), whose sum is σ = 1245456. Its totient is φ = 207572.

The previous prime is 622709. The next prime is 622723. The reversal of 622722 is 227226.

It is a sphenic number, since it is the product of 3 distinct primes.

622722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (622723) by changing a digit.

622722 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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51888 + ... + 51899.

It is an arithmetic number, because the mean of its divisors is an integer number (155682).

2⁶²²⁷²² is an apocalyptic number.

622722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

622722 is a wasteful number, since it uses less digits than its factorization.

622722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103792.

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

The square root of 622722 is about 789.1273661457. The cubic root of 622722 is about 85.3947955372.

Adding to 622722 its reverse (227226), we get a palindrome (849948).

The spelling of 622722 in words is "six hundred twenty-two thousand, seven hundred twenty-two".