9971732 has 24 divisors (see below), whose sum is σ = 18496800. Its totient is φ = 4690656.

The previous prime is 9971729. The next prime is 9971749. The reversal of 9971732 is 2371799.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13238 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (770700).

Almost surely, 2^9971732 is an apocalyptic number.

It is an amenable number.

9971732 is a deficient number, since it is larger than the sum of its proper divisors (8525068).

9971732 is a wasteful number, since it uses less digits than its factorization.

9971732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 933 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 9971732 is about 3157.8049338108. The cubic root of 9971732 is about 215.2402722178.

The spelling of 9971732 in words is "nine million, nine hundred seventy-one thousand, seven hundred thirty-two".