9774816 has 96 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 2939904.

The previous prime is 9774811. The next prime is 9774829. The reversal of 9774816 is 6184779.

It is a tau number, because it is divible by the number of its divisors (96).

Its product of digits (84672) is a multiple of the sum of its prime factors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9774811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41836 + ... + 42068.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^9774816 is an apocalyptic number.

9774816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9774816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

9774816 is an abundant number, since it is smaller than the sum of its proper divisors (18529824).

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

9774816 is a wasteful number, since it uses less digits than its factorization.

9774816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 280 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 9774816 is about 3126.4702141553. The cubic root of 9774816 is about 213.8140289014.

The spelling of 9774816 in words is "nine million, seven hundred seventy-four thousand, eight hundred sixteen".