8940689 has 4 divisors (see below), whose sum is σ = 9148656. Its totient is φ = 8732724.

The previous prime is 8940649. The next prime is 8940707. The reversal of 8940689 is 9860498.

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 8940689 - 2⁸ = 8940433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8940649) 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, 103919 + ... + 104004.

It is an arithmetic number, because the mean of its divisors is an integer number (2287164).

Almost surely, 2^8940689 is an apocalyptic number.

It is an amenable number.

8940689 is a deficient number, since it is larger than the sum of its proper divisors (207967).

8940689 is a wasteful number, since it uses less digits than its factorization.

8940689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207966.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 8940689 is about 2990.0984933610. The cubic root of 8940689 is about 207.5504420843.

The spelling of 8940689 in words is "eight million, nine hundred forty thousand, six hundred eighty-nine".