4227985 has 8 divisors (see below), whose sum is σ = 5372136. Its totient is φ = 3183360.

The previous prime is 4227983. The next prime is 4227989. The reversal of 4227985 is 5897224.

4227985 = 336² + 337² + ... + 369².

It can be written as a sum of positive squares in 4 ways, for example, as 1868689 + 2359296 = 1367^2 + 1536^2 .

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

It is not a de Polignac number, because 4227985 - 2¹ = 4227983 is a prime.

It is a d-powerful number, because it can be written as 4² + 2⁸ + 2²² + 7 + 9 + 8⁵ + 5⁴ .

It is not an unprimeable number, because it can be changed into a prime (4227983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24786 + ... + 24955.

It is an arithmetic number, because the mean of its divisors is an integer number (671517).

Almost surely, 2^4227985 is an apocalyptic number.

It is an amenable number.

4227985 is a deficient number, since it is larger than the sum of its proper divisors (1144151).

4227985 is a wasteful number, since it uses less digits than its factorization.

4227985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49763.

The product of its digits is 40320, while the sum is 37.

The square root of 4227985 is about 2056.2064585056. The cubic root of 4227985 is about 161.7004192585.

The spelling of 4227985 in words is "four million, two hundred twenty-seven thousand, nine hundred eighty-five".