6446227 has 2 divisors, whose sum is σ = 6446228. Its totient is φ = 6446226.

The previous prime is 6446221. The next prime is 6446239. The reversal of 6446227 is 7226446.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6446227 is a prime.

It is not a weakly prime, because it can be changed into another prime (6446221) 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 as a sum of consecutive naturals, namely, 3223113 + 3223114.

It is an arithmetic number, because the mean of its divisors is an integer number (3223114).

Almost surely, 2^6446227 is an apocalyptic number.

6446227 is a deficient number, since it is larger than the sum of its proper divisors (1).

6446227 is an equidigital number, since it uses as much as digits as its factorization.

6446227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 6446227 is about 2538.9421025301. The cubic root of 6446227 is about 186.1094954011.

It can be divided in two parts, 64 and 46227, that multiplied together give a triangular number (2958528 = T₂₄₃₂).

The spelling of 6446227 in words is "six million, four hundred forty-six thousand, two hundred twenty-seven".