622652 has 6 divisors (see below), whose sum is σ = 1089648. Its totient is φ = 311324.

The previous prime is 622639. The next prime is 622663. The reversal of 622652 is 256226.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

622652 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77828 + ... + 77835.

It is an arithmetic number, because the mean of its divisors is an integer number (181608).

2⁶²²⁶⁵² is an apocalyptic number.

It is an amenable number.

622652 is a deficient number, since it is larger than the sum of its proper divisors (466996).

622652 is a wasteful number, since it uses less digits than its factorization.

622652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155667 (or 155665 counting only the distinct ones).

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

The square root of 622652 is about 789.0830121096. The cubic root of 622652 is about 85.3915956826.

Adding to 622652 its reverse (256226), we get a palindrome (878878).

The spelling of 622652 in words is "six hundred twenty-two thousand, six hundred fifty-two".