84449227 has 2 divisors, whose sum is σ = 84449228. Its totient is φ = 84449226.

The previous prime is 84449213. The next prime is 84449293. The reversal of 84449227 is 72294448.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84449227 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84449227.

It is not a weakly prime, because it can be changed into another prime (84449297) 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 as a sum of consecutive naturals, namely, 42224613 + 42224614.

It is an arithmetic number, because the mean of its divisors is an integer number (42224614).

Almost surely, 2^84449227 is an apocalyptic number.

84449227 is a deficient number, since it is larger than the sum of its proper divisors (1).

84449227 is an equidigital number, since it uses as much as digits as its factorization.

84449227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 84449227 is about 9189.6260533277. The cubic root of 84449227 is about 438.7312399616.

It can be divided in two parts, 8444 and 9227, that added together give a palindrome (17671).

The spelling of 84449227 in words is "eighty-four million, four hundred forty-nine thousand, two hundred twenty-seven".