3622205 has 4 divisors (see below), whose sum is σ = 4346652. Its totient is φ = 2897760.

The previous prime is 3622193. The next prime is 3622219. The reversal of 3622205 is 5022263.

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: 5022263 = 331 ⋅15173.

It can be written as a sum of positive squares in 2 ways, for example, as 1653796 + 1968409 = 1286^2 + 1403^2 .

It is not a de Polignac number, because 3622205 - 2¹⁰ = 3621181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 362216 + ... + 362225.

It is an arithmetic number, because the mean of its divisors is an integer number (1086663).

Almost surely, 2^3622205 is an apocalyptic number.

It is an amenable number.

3622205 is a deficient number, since it is larger than the sum of its proper divisors (724447).

3622205 is an equidigital number, since it uses as much as digits as its factorization.

3622205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724446.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3622205 is about 1903.2091319663. The cubic root of 3622205 is about 153.5763500960.

Adding to 3622205 its reverse (5022263), we get a palindrome (8644468).

The spelling of 3622205 in words is "three million, six hundred twenty-two thousand, two hundred five".