622748 has 24 divisors (see below), whose sum is σ = 1300992. Its totient is φ = 255024.

The previous prime is 622729. The next prime is 622751. The reversal of 622748 is 847226.

It is a self number, because there is not a number n which added to its sum of digits gives 622748.

It is a congruent number.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 1127.

It is an arithmetic number, because the mean of its divisors is an integer number (54208).

2⁶²²⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650496).

622748 is an abundant number, since it is smaller than the sum of its proper divisors (678244).

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

622748 is a wasteful number, since it uses less digits than its factorization.

622748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 999 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 622748 is about 789.1438398670. The cubic root of 622748 is about 85.3959839936.

The spelling of 622748 in words is "six hundred twenty-two thousand, seven hundred forty-eight".