622379805 has 8 divisors (see below), whose sum is σ = 995807712. Its totient is φ = 331935888.

The previous prime is 622379801. The next prime is 622379819. The reversal of 622379805 is 508973226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 622379805 - 2² = 622379801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622379801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20745979 + ... + 20746008.

It is an arithmetic number, because the mean of its divisors is an integer number (124475964).

Almost surely, 2^622379805 is an apocalyptic number.

It is an amenable number.

622379805 is a deficient number, since it is larger than the sum of its proper divisors (373427907).

622379805 is a wasteful number, since it uses less digits than its factorization.

622379805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41491995.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 622379805 is about 24947.5410611948. The cubic root of 622379805 is about 853.7915076781.

The spelling of 622379805 in words is "six hundred twenty-two million, three hundred seventy-nine thousand, eight hundred five".