9928506 has 32 divisors (see below), whose sum is σ = 23310720. Its totient is φ = 2759616.

The previous prime is 9928487. The next prime is 9928537. The reversal of 9928506 is 6058299.

It is a happy number.

It is a super-3 number, since 3×9928506³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1641 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (728460).

Almost surely, 2^9928506 is an apocalyptic number.

9928506 is an abundant number, since it is smaller than the sum of its proper divisors (13382214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9928506 is a wasteful number, since it uses less digits than its factorization.

9928506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 9928506 is about 3150.9531891160. The cubic root of 9928506 is about 214.9288100342.

The spelling of 9928506 in words is "nine million, nine hundred twenty-eight thousand, five hundred six".