622678 has 16 divisors (see below), whose sum is σ = 1082880. Its totient is φ = 263016.

The previous prime is 622669. The next prime is 622709. The reversal of 622678 is 876226.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

622678 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 7 ways as a sum of consecutive naturals, for example, 825 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (67680).

2⁶²²⁶⁷⁸ is an apocalyptic number.

622678 is a deficient number, since it is larger than the sum of its proper divisors (460202).

622678 is a wasteful number, since it uses less digits than its factorization.

622678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

The product of its digits is 8064, while the sum is 31.

The square root of 622678 is about 789.0994867569. The cubic root of 622678 is about 85.3927842280.

The spelling of 622678 in words is "six hundred twenty-two thousand, six hundred seventy-eight".