3222005 has 4 divisors (see below), whose sum is σ = 3866412. Its totient is φ = 2577600.

The previous prime is 3221983. The next prime is 3222007. The reversal of 3222005 is 5002223.

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 552049 + 2669956 = 743^2 + 1634^2 .

It is not a de Polignac number, because 3222005 - 2⁶ = 3221941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322196 + ... + 322205.

It is an arithmetic number, because the mean of its divisors is an integer number (966603).

Almost surely, 2^3222005 is an apocalyptic number.

It is an amenable number.

3222005 is a deficient number, since it is larger than the sum of its proper divisors (644407).

3222005 is an equidigital number, since it uses as much as digits as its factorization.

3222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644406.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 3222005 is about 1794.9944289607. The cubic root of 3222005 is about 147.6982682738.

Subtracting from 3222005 its sum of digits (14), we obtain a triangular number (3221991 = T₂₅₃₈).

Adding to 3222005 its reverse (5002223), we get a palindrome (8224228).

The spelling of 3222005 in words is "three million, two hundred twenty-two thousand, five".