8989421 has 8 divisors (see below), whose sum is σ = 10296384. Its totient is φ = 7688160.

The previous prime is 8989399. The next prime is 8989459. The reversal of 8989421 is 1249898.

8989421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8989421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989621) 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, 2801 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (1287048).

Almost surely, 2^8989421 is an apocalyptic number.

It is an amenable number.

8989421 is a deficient number, since it is larger than the sum of its proper divisors (1306963).

8989421 is a wasteful number, since it uses less digits than its factorization.

8989421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851.

The product of its digits is 41472, while the sum is 41.

The square root of 8989421 is about 2998.2363149025. The cubic root of 8989421 is about 207.9268495853.

The spelling of 8989421 in words is "eight million, nine hundred eighty-nine thousand, four hundred twenty-one".