9928946 has 4 divisors (see below), whose sum is σ = 14893422. Its totient is φ = 4964472.

The previous prime is 9928943. The next prime is 9928981. The reversal of 9928946 is 6498299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 75625 = 3139^2 + 275^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9928946.

It is not an unprimeable number, because it can be changed into a prime (9928943) 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, 2482235 + ... + 2482238.

Almost surely, 2^9928946 is an apocalyptic number.

9928946 is a deficient number, since it is larger than the sum of its proper divisors (4964476).

9928946 is a wasteful number, since it uses less digits than its factorization.

9928946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964475.

The product of its digits is 279936, while the sum is 47.

The square root of 9928946 is about 3151.0230084847. The cubic root of 9928946 is about 214.9319849758.

The spelling of 9928946 in words is "nine million, nine hundred twenty-eight thousand, nine hundred forty-six".