4227665 has 16 divisors (see below), whose sum is σ = 5508048. Its totient is φ = 3096576.

The previous prime is 4227661. The next prime is 4227667. The reversal of 4227665 is 5667224.

It can be written as a sum of positive squares in 8 ways, for example, as 1048576 + 3179089 = 1024^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 4227665 - 2² = 4227661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4227661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12377 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (344253).

Almost surely, 2^4227665 is an apocalyptic number.

It is an amenable number.

4227665 is a deficient number, since it is larger than the sum of its proper divisors (1280383).

4227665 is a wasteful number, since it uses less digits than its factorization.

4227665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 20160, while the sum is 32.

The square root of 4227665 is about 2056.1286438353. The cubic root of 4227665 is about 161.6963396603.

The spelling of 4227665 in words is "four million, two hundred twenty-seven thousand, six hundred sixty-five".