4227205 has 4 divisors (see below), whose sum is σ = 5072652. Its totient is φ = 3381760.

The previous prime is 4227187. The next prime is 4227229. The reversal of 4227205 is 5027224.

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 544644 + 3682561 = 738^2 + 1919^2 .

It is not a de Polignac number, because 4227205 - 2⁷ = 4227077 is a prime.

It is a super-2 number, since 2×4227205² = 35738524224050, which contains 22 as substring.

It is a Duffinian number.

4227205 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422716 + ... + 422725.

It is an arithmetic number, because the mean of its divisors is an integer number (1268163).

Almost surely, 2^4227205 is an apocalyptic number.

It is an amenable number.

4227205 is a deficient number, since it is larger than the sum of its proper divisors (845447).

4227205 is an equidigital number, since it uses as much as digits as its factorization.

4227205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845446.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 4227205 is about 2056.0167800872. The cubic root of 4227205 is about 161.6904748772.

The spelling of 4227205 in words is "four million, two hundred twenty-seven thousand, two hundred five".