622828 has 6 divisors (see below), whose sum is σ = 1089956. Its totient is φ = 311412.

The previous prime is 622813. The next prime is 622849. The reversal of 622828 is 828226.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 622796 and 622805.

It is an unprimeable number.

622828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77850 + ... + 77857.

2⁶²²⁸²⁸ is an apocalyptic number.

It is an amenable number.

622828 is a deficient number, since it is larger than the sum of its proper divisors (467128).

622828 is a wasteful number, since it uses less digits than its factorization.

622828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155711 (or 155709 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 622828 is about 789.1945260834. The cubic root of 622828 is about 85.3996405750.

The spelling of 622828 in words is "six hundred twenty-two thousand, eight hundred twenty-eight".