8986021 has 4 divisors (see below), whose sum is σ = 9802944. Its totient is φ = 8169100.

The previous prime is 8985997. The next prime is 8986039. The reversal of 8986021 is 1206898.

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 8986021 - 2⁵ = 8985989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8986091) 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, 408445 + ... + 408466.

It is an arithmetic number, because the mean of its divisors is an integer number (2450736).

Almost surely, 2^8986021 is an apocalyptic number.

It is an amenable number.

8986021 is a deficient number, since it is larger than the sum of its proper divisors (816923).

8986021 is a wasteful number, since it uses less digits than its factorization.

8986021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816922.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 8986021 is about 2997.6692612762. The cubic root of 8986021 is about 207.9006320853.

The spelling of 8986021 in words is "eight million, nine hundred eighty-six thousand, twenty-one".