9932981 has 8 divisors (see below), whose sum is σ = 10546200. Its totient is φ = 9323008.

The previous prime is 9932977. The next prime is 9932999. The reversal of 9932981 is 1892399.

9932981 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2588881 + 7344100 = 1609^2 + 2710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9932981 - 2² = 9932977 is a prime.

It is a super-2 number, since 2×9932981² = 197328223092722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9932581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8945 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (1318275).

Almost surely, 2^9932981 is an apocalyptic number.

It is an amenable number.

9932981 is a deficient number, since it is larger than the sum of its proper divisors (613219).

9932981 is a wasteful number, since it uses less digits than its factorization.

9932981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its digits is 34992, while the sum is 41.

The square root of 9932981 is about 3151.6632117027. The cubic root of 9932981 is about 214.9610962600.

Subtracting from 9932981 its product of digits (34992), we obtain a palindrome (9897989).

The spelling of 9932981 in words is "nine million, nine hundred thirty-two thousand, nine hundred eighty-one".