9778930 has 32 divisors (see below), whose sum is σ = 20534400. Its totient is φ = 3351600.

The previous prime is 9778913. The next prime is 9778943. The reversal of 9778930 is 398779.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2005 + ... + 4855.

It is an arithmetic number, because the mean of its divisors is an integer number (641700).

Almost surely, 2^9778930 is an apocalyptic number.

9778930 is an abundant number, since it is smaller than the sum of its proper divisors (10755470).

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

9778930 is a wasteful number, since it uses less digits than its factorization.

9778930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2865 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 9778930 is about 3127.1280754072. The cubic root of 9778930 is about 213.8440211978.

The spelling of 9778930 in words is "nine million, seven hundred seventy-eight thousand, nine hundred thirty".