4447889 has 2 divisors, whose sum is σ = 4447890. Its totient is φ = 4447888.

The previous prime is 4447879. The next prime is 4447903. The reversal of 4447889 is 9887444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4443664 + 4225 = 2108^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 4447889 - 2¹² = 4443793 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (4447819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2223944 + 2223945.

It is an arithmetic number, because the mean of its divisors is an integer number (2223945).

Almost surely, 2^4447889 is an apocalyptic number.

It is an amenable number.

4447889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4447889 is an equidigital number, since it uses as much as digits as its factorization.

4447889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 44.

The square root of 4447889 is about 2109.0018966326. The cubic root of 4447889 is about 164.4566023429.

The spelling of 4447889 in words is "four million, four hundred forty-seven thousand, eight hundred eighty-nine".