9922978 has 32 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 4245696.

The previous prime is 9922967. The next prime is 9922987. The reversal of 9922978 is 8792299.

9922978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 25993 + ... + 26371.

It is an arithmetic number, because the mean of its divisors is an integer number (538650).

Almost surely, 2^9922978 is an apocalyptic number.

9922978 is a deficient number, since it is larger than the sum of its proper divisors (7313822).

9922978 is a wasteful number, since it uses less digits than its factorization.

9922978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 163296, while the sum is 46.

The square root of 9922978 is about 3150.0758721021. The cubic root of 9922978 is about 214.8889132280. Note that the first 3 decimals are identical.

The spelling of 9922978 in words is "nine million, nine hundred twenty-two thousand, nine hundred seventy-eight".