9890026 has 8 divisors (see below), whose sum is σ = 15236100. Its totient is φ = 4811328.

The previous prime is 9890017. The next prime is 9890033. The reversal of 9890026 is 6200989.

It can be written as a sum of positive squares in 2 ways, for example, as 9641025 + 249001 = 3105^2 + 499^2 .

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

It is a super-2 number, since 2×9890026² = 195625228561352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9889973 and 9890000.

It is an unprimeable number.

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, 66751 + ... + 66898.

Almost surely, 2^9890026 is an apocalyptic number.

9890026 is a deficient number, since it is larger than the sum of its proper divisors (5346074).

9890026 is a wasteful number, since it uses less digits than its factorization.

9890026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133688.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 9890026 is about 3144.8411724601. The cubic root of 9890026 is about 214.6507833667.

The spelling of 9890026 in words is "nine million, eight hundred ninety thousand, twenty-six".