8966689 has 4 divisors (see below), whose sum is σ = 9438640. Its totient is φ = 8494740.

The previous prime is 8966687. The next prime is 8966693. The reversal of 8966689 is 9866698.

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 8966689 - 2¹ = 8966687 is a prime.

It is a Duffinian number.

8966689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8966681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235947 + ... + 235984.

It is an arithmetic number, because the mean of its divisors is an integer number (2359660).

Almost surely, 2^8966689 is an apocalyptic number.

It is an amenable number.

8966689 is a deficient number, since it is larger than the sum of its proper divisors (471951).

8966689 is a wasteful number, since it uses less digits than its factorization.

8966689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471950.

The product of its digits is 1119744, while the sum is 52.

The square root of 8966689 is about 2994.4430199955. The cubic root of 8966689 is about 207.7514366240.

Subtracting 8966689 from its reverse (9866698), we obtain a palindrome (900009).

The spelling of 8966689 in words is "eight million, nine hundred sixty-six thousand, six hundred eighty-nine".