8989423 has 4 divisors (see below), whose sum is σ = 9006120. Its totient is φ = 8972728.

The previous prime is 8989399. The next prime is 8989459. The reversal of 8989423 is 3249898.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8989423 - 2²¹ = 6892271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8989423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7513 + ... + 8626.

It is an arithmetic number, because the mean of its divisors is an integer number (2251530).

Almost surely, 2^8989423 is an apocalyptic number.

8989423 is a deficient number, since it is larger than the sum of its proper divisors (16697).

8989423 is a wasteful number, since it uses less digits than its factorization.

8989423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16696.

The product of its digits is 124416, while the sum is 43.

The square root of 8989423 is about 2998.2366484319. The cubic root of 8989423 is about 207.9268650054.

The spelling of 8989423 in words is "eight million, nine hundred eighty-nine thousand, four hundred twenty-three".