6445227 has 16 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 3948672.

The previous prime is 6445223. The next prime is 6445247. The reversal of 6445227 is 7225446.

It is not a de Polignac number, because 6445227 - 2² = 6445223 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6445194 and 6445203.

It is not an unprimeable number, because it can be changed into a prime (6445223) 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 15 ways as a sum of consecutive naturals, for example, 724 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^6445227 is an apocalyptic number.

6445227 is a deficient number, since it is larger than the sum of its proper divisors (2868693).

6445227 is a wasteful number, since it uses less digits than its factorization.

6445227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002.

The product of its digits is 13440, while the sum is 30.

The square root of 6445227 is about 2538.7451624769. The cubic root of 6445227 is about 186.0998712122.

The spelling of 6445227 in words is "six million, four hundred forty-five thousand, two hundred twenty-seven".