8444989 has 8 divisors (see below), whose sum is σ = 9963008. Its totient is φ = 7004880.

The previous prime is 8444983. The next prime is 8445013. The reversal of 8444989 is 9894448.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8444989 - 2³ = 8444981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444981) 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 7 ways as a sum of consecutive naturals, for example, 19242 + ... + 19675.

It is an arithmetic number, because the mean of its divisors is an integer number (1245376).

Almost surely, 2^8444989 is an apocalyptic number.

It is an amenable number.

8444989 is a deficient number, since it is larger than the sum of its proper divisors (1518019).

8444989 is a wasteful number, since it uses less digits than its factorization.

8444989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38955.

The product of its digits is 331776, while the sum is 46.

The square root of 8444989 is about 2906.0263247259. The cubic root of 8444989 is about 203.6415353547.

The spelling of 8444989 in words is "eight million, four hundred forty-four thousand, nine hundred eighty-nine".