622756 has 6 divisors (see below), whose sum is σ = 1089830. Its totient is φ = 311376.

The previous prime is 622751. The next prime is 622777. The reversal of 622756 is 657226.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 8100 = 784^2 + 90^2 .

It is not an unprimeable number, because it can be changed into a prime (622751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77841 + ... + 77848.

2⁶²²⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

622756 is a deficient number, since it is larger than the sum of its proper divisors (467074).

622756 is a wasteful number, since it uses less digits than its factorization.

622756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155693 (or 155691 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 622756 is about 789.1489086351. The cubic root of 622756 is about 85.3963496658.

Subtracting from 622756 its product of digits (5040), we obtain a palindrome (617716).

It can be divided in two parts, 622 and 756, that added together give a triangular number (1378 = T₅₂).

The spelling of 622756 in words is "six hundred twenty-two thousand, seven hundred fifty-six".