8446989 has 8 divisors (see below), whose sum is σ = 11567200. Its totient is φ = 5479056.

The previous prime is 8446979. The next prime is 8447029. The reversal of 8446989 is 9896448.

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

It is not a de Polignac number, because 8446989 - 2¹¹ = 8444941 is a prime.

It is a super-2 number, since 2×8446989² = 142703246332242, which contains 22 as substring.

It is a Duffinian number.

8446989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8446939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37939 + ... + 38160.

It is an arithmetic number, because the mean of its divisors is an integer number (1445900).

Almost surely, 2^8446989 is an apocalyptic number.

It is an amenable number.

8446989 is a deficient number, since it is larger than the sum of its proper divisors (3120211).

8446989 is a wasteful number, since it uses less digits than its factorization.

8446989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76139.

The product of its digits is 497664, while the sum is 48.

The square root of 8446989 is about 2906.3704168602. The cubic root of 8446989 is about 203.6576100124.

The spelling of 8446989 in words is "eight million, four hundred forty-six thousand, nine hundred eighty-nine".