622345 has 8 divisors (see below), whose sum is σ = 786240. Its totient is φ = 471600.

The previous prime is 622337. The next prime is 622351. The reversal of 622345 is 543226.

It is a happy number.

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

It is not a de Polignac number, because 622345 - 2³ = 622337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181 + ... + 3370.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2⁶²²³⁴⁵ is an apocalyptic number.

It is an amenable number.

622345 is a deficient number, since it is larger than the sum of its proper divisors (163895).

622345 is a wasteful number, since it uses less digits than its factorization.

622345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575.

The product of its digits is 1440, while the sum is 22.

The square root of 622345 is about 788.8884585288. Note that the first 3 decimals coincide. The cubic root of 622345 is about 85.3775592012.

The spelling of 622345 in words is "six hundred twenty-two thousand, three hundred forty-five".