9928479 has 32 divisors (see below), whose sum is σ = 15335424. Its totient is φ = 5654880.

The previous prime is 9928453. The next prime is 9928487. The reversal of 9928479 is 9748299.

It is a happy number.

It is not a de Polignac number, because 9928479 - 2⁷ = 9928351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78114 + ... + 78240.

It is an arithmetic number, because the mean of its divisors is an integer number (479232).

Almost surely, 2^9928479 is an apocalyptic number.

9928479 is a deficient number, since it is larger than the sum of its proper divisors (5406945).

9928479 is a wasteful number, since it uses less digits than its factorization.

9928479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its digits is 326592, while the sum is 48.

The square root of 9928479 is about 3150.9489046952. The cubic root of 9928479 is about 214.9286152052.

The spelling of 9928479 in words is "nine million, nine hundred twenty-eight thousand, four hundred seventy-nine".