9928426 has 8 divisors (see below), whose sum is σ = 14909220. Its totient is φ = 4958688.

The previous prime is 9928409. The next prime is 9928441. The reversal of 9928426 is 6248299.

It can be written as a sum of positive squares in 2 ways, for example, as 9296401 + 632025 = 3049^2 + 795^2 .

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

It is a d-powerful number, because it can be written as 9⁶ + 9⁷ + 2¹³ + 8³ + 4¹¹ + 2¹⁷ + 6⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60 + ... + 4456.

Almost surely, 2^9928426 is an apocalyptic number.

9928426 is a deficient number, since it is larger than the sum of its proper divisors (4980794).

9928426 is a wasteful number, since it uses less digits than its factorization.

9928426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528.

The product of its digits is 62208, while the sum is 40.

The square root of 9928426 is about 3150.9404945191. The cubic root of 9928426 is about 214.9282327620.

The spelling of 9928426 in words is "nine million, nine hundred twenty-eight thousand, four hundred twenty-six".