227880005 has 18 divisors (see below), whose sum is σ = 281757906. Its totient is φ = 176930208.

The previous prime is 227880001. The next prime is 227880011. The reversal of 227880005 is 500088722.

It can be written as a sum of positive squares in 3 ways, for example, as 2669956 + 225210049 = 1634^2 + 15007^2 .

It is not a de Polignac number, because 227880005 - 2² = 227880001 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 (227880001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1451387 + ... + 1451543.

It is an arithmetic number, because the mean of its divisors is an integer number (15653217).

Almost surely, 2^227880005 is an apocalyptic number.

It is an amenable number.

227880005 is a deficient number, since it is larger than the sum of its proper divisors (53877901).

227880005 is an frugal number, since it uses more digits than its factorization.

227880005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 227880005 is about 15095.6949161011. The cubic root of 227880005 is about 610.8042826360.

The spelling of 227880005 in words is "two hundred twenty-seven million, eight hundred eighty thousand, five".