9879776 has 24 divisors (see below), whose sum is σ = 19867680. Its totient is φ = 4834048.

The previous prime is 9879773. The next prime is 9879781. The reversal of 9879776 is 6779789.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 4788.

It is an arithmetic number, because the mean of its divisors is an integer number (827820).

Almost surely, 2^9879776 is an apocalyptic number.

It is an amenable number.

9879776 is an abundant number, since it is smaller than the sum of its proper divisors (9987904).

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

9879776 is a wasteful number, since it uses less digits than its factorization.

9879776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626 (or 6618 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 53.

The square root of 9879776 is about 3143.2110969517. The cubic root of 9879776 is about 214.5766032095.

The spelling of 9879776 in words is "nine million, eight hundred seventy-nine thousand, seven hundred seventy-six".