8447444 has 6 divisors (see below), whose sum is σ = 14783034. Its totient is φ = 4223720.

The previous prime is 8447441. The next prime is 8447471. The reversal of 8447444 is 4447448.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6959044 + 1488400 = 2638^2 + 1220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8447441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055927 + ... + 1055934.

It is an arithmetic number, because the mean of its divisors is an integer number (2463839).

Almost surely, 2^8447444 is an apocalyptic number.

It is an amenable number.

8447444 is a deficient number, since it is larger than the sum of its proper divisors (6335590).

8447444 is a wasteful number, since it uses less digits than its factorization.

8447444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111865 (or 2111863 counting only the distinct ones).

The product of its digits is 57344, while the sum is 35.

The square root of 8447444 is about 2906.4486921327. The cubic root of 8447444 is about 203.6612666427.

The spelling of 8447444 in words is "eight million, four hundred forty-seven thousand, four hundred forty-four".