646227 has 12 divisors (see below), whose sum is σ = 950040. Its totient is φ = 423168.

The previous prime is 646199. The next prime is 646237. The reversal of 646227 is 722646.

It is not a de Polignac number, because 646227 - 2⁷ = 646099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 646227.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 646227.

It is not an unprimeable number, because it can be changed into a prime (646237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78 + ... + 1139.

It is an arithmetic number, because the mean of its divisors is an integer number (79170).

2⁶⁴⁶²²⁷ is an apocalyptic number.

646227 is a deficient number, since it is larger than the sum of its proper divisors (303813).

646227 is a wasteful number, since it uses less digits than its factorization.

646227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1279 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 646227 is about 803.8824540939. The cubic root of 646227 is about 86.4559790266.

The spelling of 646227 in words is "six hundred forty-six thousand, two hundred twenty-seven".