9878916 has 12 divisors (see below), whose sum is σ = 23050832. Its totient is φ = 3292968.

The previous prime is 9878903. The next prime is 9878923. The reversal of 9878916 is 6198789.

It is a happy number.

9878916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411610 + ... + 411633.

Almost surely, 2^9878916 is an apocalyptic number.

It is an amenable number.

9878916 is an abundant number, since it is smaller than the sum of its proper divisors (13171916).

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

9878916 is a wasteful number, since it uses less digits than its factorization.

9878916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823250 (or 823248 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 9878916 is about 3143.0742911996. The cubic root of 9878916 is about 214.5703769808.

The spelling of 9878916 in words is "nine million, eight hundred seventy-eight thousand, nine hundred sixteen".