622805 has 4 divisors (see below), whose sum is σ = 747372. Its totient is φ = 498240.

The previous prime is 622793. The next prime is 622813. The reversal of 622805 is 508226.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70756 + 552049 = 266^2 + 743^2 .

It is not a de Polignac number, because 622805 - 2⁸ = 622549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62276 + ... + 62285.

It is an arithmetic number, because the mean of its divisors is an integer number (186843).

2⁶²²⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

622805 is a deficient number, since it is larger than the sum of its proper divisors (124567).

622805 is a wasteful number, since it uses less digits than its factorization.

622805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124566.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 622805 is about 789.1799541296. The cubic root of 622805 is about 85.3985893399.

The spelling of 622805 in words is "six hundred twenty-two thousand, eight hundred five".