8999444 has 6 divisors (see below), whose sum is σ = 15749034. Its totient is φ = 4499720.

The previous prime is 8999437. The next prime is 8999461. The reversal of 8999444 is 4449998.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 2598544 = 2530^2 + 1612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124927 + ... + 1124934.

It is an arithmetic number, because the mean of its divisors is an integer number (2624839).

Almost surely, 2^8999444 is an apocalyptic number.

It is an amenable number.

8999444 is a deficient number, since it is larger than the sum of its proper divisors (6749590).

8999444 is a wasteful number, since it uses less digits than its factorization.

8999444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249865 (or 2249863 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 8999444 is about 2999.9073319021. The cubic root of 8999444 is about 208.0040987851.

The spelling of 8999444 in words is "eight million, nine hundred ninety-nine thousand, four hundred forty-four".