6622205 has 4 divisors (see below), whose sum is σ = 7946652. Its totient is φ = 5297760.

The previous prime is 6622199. The next prime is 6622211. The reversal of 6622205 is 5022266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5022266 = 2 ⋅2511133.

It is an interprime number because it is at equal distance from previous prime (6622199) and next prime (6622211).

It can be written as a sum of positive squares in 2 ways, for example, as 3545689 + 3076516 = 1883^2 + 1754^2 .

It is not a de Polignac number, because 6622205 - 2⁸ = 6621949 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, 662216 + ... + 662225.

It is an arithmetic number, because the mean of its divisors is an integer number (1986663).

Almost surely, 2^6622205 is an apocalyptic number.

It is an amenable number.

6622205 is a deficient number, since it is larger than the sum of its proper divisors (1324447).

6622205 is a wasteful number, since it uses less digits than its factorization.

6622205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324446.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6622205 is about 2573.3645291719. The cubic root of 6622205 is about 187.7878718734.

The spelling of 6622205 in words is "six million, six hundred twenty-two thousand, two hundred five".