9721001032 has 16 divisors (see below), whose sum is σ = 18232201260. Its totient is φ = 4859080704.

The previous prime is 9721001021. The next prime is 9721001093. The reversal of 9721001032 is 2301001279.

It can be written as a sum of positive squares in 2 ways, for example, as 7662201156 + 2058799876 = 87534^2 + 45374^2 .

It is a super-3 number, since 3×9721001032³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 9721000988 and 9721001006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148093 + ... + 203404.

Almost surely, 2^9721001032 is an apocalyptic number.

It is an amenable number.

9721001032 is a deficient number, since it is larger than the sum of its proper divisors (8511200228).

9721001032 is a wasteful number, since it uses less digits than its factorization.

9721001032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354960 (or 354956 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 9721001032 is about 98595.1369591827. The cubic root of 9721001032 is about 2134.2092428133.

The spelling of 9721001032 in words is "nine billion, seven hundred twenty-one million, one thousand, thirty-two".