9791787432 has 64 divisors (see below), whose sum is σ = 29622222720. Its totient is φ = 2633084928.

The previous prime is 9791787431. The next prime is 9791787443. The reversal of 9791787432 is 2347871979.

It is a super-3 number, since 3×9791787432³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9791787431) 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, 1711393 + ... + 1717104.

It is an arithmetic number, because the mean of its divisors is an integer number (462847230).

Almost surely, 2^9791787432 is an apocalyptic number.

It is an amenable number.

9791787432 is an abundant number, since it is smaller than the sum of its proper divisors (19830435288).

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

9791787432 is a wasteful number, since it uses less digits than its factorization.

9791787432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428530 (or 3428526 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 57.

The square root of 9791787432 is about 98953.4609399793. The cubic root of 9791787432 is about 2139.3770155019.

The spelling of 9791787432 in words is "nine billion, seven hundred ninety-one million, seven hundred eighty-seven thousand, four hundred thirty-two".