8966989 has 4 divisors (see below), whose sum is σ = 9157824. Its totient is φ = 8776156.

The previous prime is 8966977. The next prime is 8966999. The reversal of 8966989 is 9896698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8966989 - 2¹³ = 8958797 is a prime.

It is a super-2 number, since 2×8966989² = 160813783452242, which contains 22 as substring.

It is a Duffinian number.

8966989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8966959) 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 3 ways as a sum of consecutive naturals, for example, 95347 + ... + 95440.

It is an arithmetic number, because the mean of its divisors is an integer number (2289456).

Almost surely, 2^8966989 is an apocalyptic number.

It is an amenable number.

8966989 is a deficient number, since it is larger than the sum of its proper divisors (190835).

8966989 is a wasteful number, since it uses less digits than its factorization.

8966989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190834.

The product of its digits is 1679616, while the sum is 55.

The square root of 8966989 is about 2994.4931123648. The cubic root of 8966989 is about 207.7537535229.

The spelling of 8966989 in words is "eight million, nine hundred sixty-six thousand, nine hundred eighty-nine".