9712782684 has 48 divisors (see below), whose sum is σ = 27470499840. Its totient is φ = 2943267120.

The previous prime is 9712782671. The next prime is 9712782713. The reversal of 9712782684 is 4862872179.

It is a happy number.

9712782684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9712782684² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 9712782684.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4086684 + ... + 4089059.

It is an arithmetic number, because the mean of its divisors is an integer number (572302080).

Almost surely, 2^9712782684 is an apocalyptic number.

It is an amenable number.

9712782684 is an abundant number, since it is smaller than the sum of its proper divisors (17757717156).

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

9712782684 is a wasteful number, since it uses less digits than its factorization.

9712782684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175767 (or 8175759 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 9712782684 is about 98553.4508984845. The cubic root of 9712782684 is about 2133.6076374390.

The spelling of 9712782684 in words is "nine billion, seven hundred twelve million, seven hundred eighty-two thousand, six hundred eighty-four".