9729312936 has 64 divisors (see below), whose sum is σ = 27982202880. Its totient is φ = 2761387200.

The previous prime is 9729312899. The next prime is 9729312937. The reversal of 9729312936 is 6392139279.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9729312937) 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, 166396 + ... + 217131.

It is an arithmetic number, because the mean of its divisors is an integer number (437221920).

Almost surely, 2^9729312936 is an apocalyptic number.

It is an amenable number.

9729312936 is an abundant number, since it is smaller than the sum of its proper divisors (18252889944).

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

9729312936 is a wasteful number, since it uses less digits than its factorization.

9729312936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383694 (or 383690 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 51.

The square root of 9729312936 is about 98637.2796461865. The cubic root of 9729312936 is about 2134.8173519541.

The spelling of 9729312936 in words is "nine billion, seven hundred twenty-nine million, three hundred twelve thousand, nine hundred thirty-six".