9877712 has 40 divisors (see below), whose sum is σ = 20805960. Its totient is φ = 4542720.

The previous prime is 9877709. The next prime is 9877723. The reversal of 9877712 is 2177789.

It can be written as a sum of positive squares in 4 ways, for example, as 2238016 + 7639696 = 1496^2 + 2764^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9877712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35012 + ... + 35292.

It is an arithmetic number, because the mean of its divisors is an integer number (520149).

Almost surely, 2^9877712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9877712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10402980).

9877712 is an abundant number, since it is smaller than the sum of its proper divisors (10928248).

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

9877712 is a wasteful number, since it uses less digits than its factorization.

9877712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 296 counting only the distinct ones).

The product of its digits is 49392, while the sum is 41.

The square root of 9877712 is about 3142.8827531424. The cubic root of 9877712 is about 214.5616596536.

It can be divided in two parts, 98777 and 12, that added together give a palindrome (98789).

The spelling of 9877712 in words is "nine million, eight hundred seventy-seven thousand, seven hundred twelve".