9989026 has 4 divisors (see below), whose sum is σ = 14983542. Its totient is φ = 4994512.

The previous prime is 9988991. The next prime is 9989027. The reversal of 9989026 is 6209899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6209899 = 337 ⋅18427.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 160801 = 3135^2 + 401^2 .

It is not an unprimeable number, because it can be changed into a prime (9989027) 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 as a sum of consecutive naturals, namely, 2497255 + ... + 2497258.

Almost surely, 2^9989026 is an apocalyptic number.

9989026 is a deficient number, since it is larger than the sum of its proper divisors (4994516).

9989026 is a wasteful number, since it uses less digits than its factorization.

9989026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994515.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 9989026 is about 3160.5420421187. The cubic root of 9989026 is about 215.3646309362.

The spelling of 9989026 in words is "nine million, nine hundred eighty-nine thousand, twenty-six".