622928 has 10 divisors (see below), whose sum is σ = 1206954. Its totient is φ = 311456.

The previous prime is 622927. The next prime is 622943. The reversal of 622928 is 829226.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 300304 = 568^2 + 548^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 622928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19451 + ... + 19482.

2⁶²²⁹²⁸ is an apocalyptic number.

It is an amenable number.

622928 is a deficient number, since it is larger than the sum of its proper divisors (584026).

622928 is a wasteful number, since it uses less digits than its factorization.

622928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38941 (or 38935 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 622928 is about 789.2578792765. The cubic root of 622928 is about 85.4042108614.

The spelling of 622928 in words is "six hundred twenty-two thousand, nine hundred twenty-eight".