4227845 has 8 divisors (see below), whose sum is σ = 5084664. Its totient is φ = 3374784.

The previous prime is 4227827. The next prime is 4227859. The reversal of 4227845 is 5487224.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 4190209 = 194^2 + 2047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4227845 - 2¹⁶ = 4162309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3227 + ... + 4343.

It is an arithmetic number, because the mean of its divisors is an integer number (635583).

Almost surely, 2^4227845 is an apocalyptic number.

It is an amenable number.

4227845 is a deficient number, since it is larger than the sum of its proper divisors (856819).

4227845 is a wasteful number, since it uses less digits than its factorization.

4227845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its digits is 17920, while the sum is 32.

The square root of 4227845 is about 2056.1724149497. The cubic root of 4227845 is about 161.6986344596.

The spelling of 4227845 in words is "four million, two hundred twenty-seven thousand, eight hundred forty-five".