9878212 has 48 divisors (see below), whose sum is σ = 19192320. Its totient is φ = 4435200.

The previous prime is 9878203. The next prime is 9878227. The reversal of 9878212 is 2128789.

9878212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 147403 + ... + 147469.

It is an arithmetic number, because the mean of its divisors is an integer number (399840).

Almost surely, 2^9878212 is an apocalyptic number.

It is an amenable number.

9878212 is a deficient number, since it is larger than the sum of its proper divisors (9314108).

9878212 is a wasteful number, since it uses less digits than its factorization.

9878212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 170 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 9878212 is about 3142.9622969422. The cubic root of 9878212 is about 214.5652798921.

The spelling of 9878212 in words is "nine million, eight hundred seventy-eight thousand, two hundred twelve".