9709076840 has 32 divisors (see below), whose sum is σ = 21862565280. Its totient is φ = 3880583232.

The previous prime is 9709076809. The next prime is 9709076857. The reversal of 9709076840 is 486709079.

It is a happy number.

It is a super-4 number, since 4×9709076840⁴ (a number of 41 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43274 + ... + 145913.

It is an arithmetic number, because the mean of its divisors is an integer number (683205165).

Almost surely, 2^9709076840 is an apocalyptic number.

It is an amenable number.

9709076840 is an abundant number, since it is smaller than the sum of its proper divisors (12153488440).

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

9709076840 is a wasteful number, since it uses less digits than its factorization.

9709076840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190481 (or 190477 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 9709076840 is about 98534.6479163548. The cubic root of 9709076840 is about 2133.3362485854.

The spelling of 9709076840 in words is "nine billion, seven hundred nine million, seventy-six thousand, eight hundred forty".