8890989 has 16 divisors (see below), whose sum is σ = 12271872. Its totient is φ = 5721408.

The previous prime is 8890969. The next prime is 8890997. The reversal of 8890989 is 9890988.

8890989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8890989 - 2²¹ = 6793837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8890919) 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 15 ways as a sum of consecutive naturals, for example, 18972 + ... + 19434.

It is an arithmetic number, because the mean of its divisors is an integer number (766992).

Almost surely, 2^8890989 is an apocalyptic number.

It is an amenable number.

8890989 is a deficient number, since it is larger than the sum of its proper divisors (3380883).

8890989 is a wasteful number, since it uses less digits than its factorization.

8890989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 8890989 is about 2981.7761485397. The cubic root of 8890989 is about 207.1651462794.

Subtracting 8890989 from its reverse (9890988), we obtain a palindrome (999999).

The spelling of 8890989 in words is "eight million, eight hundred ninety thousand, nine hundred eighty-nine".