622776 has 64 divisors (see below), whose sum is σ = 1946880. Its totient is φ = 161280.

The previous prime is 622751. The next prime is 622777. The reversal of 622776 is 677226.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622777) by changing a digit.

622776 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 in 15 ways as a sum of consecutive naturals, for example, 1680 + ... + 2016.

It is an arithmetic number, because the mean of its divisors is an integer number (30420).

2⁶²²⁷⁷⁶ is an apocalyptic number.

622776 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973440).

622776 is an abundant number, since it is smaller than the sum of its proper divisors (1324104).

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

622776 is a wasteful number, since it uses less digits than its factorization.

622776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 360 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 622776 is about 789.1615804130. The cubic root of 622776 is about 85.3972638327.

The spelling of 622776 in words is "six hundred twenty-two thousand, seven hundred seventy-six".